Best Counterbores. Reviews September, 2020

Accusize Industrial Tools H.S.S. Solid Cap Screw Counterbore Set, 3 Flute, Straight Shank, 7 Pc, 508S-0007

Search only Accusize Industrial Tools brand name
Accusize Industrial Tools H.S.S. Solid Cap Screw Counterbore Set, 3 Flute, Straight Shank, 7 Pc, 508S-0007

Current price: 62 USD


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Height: 12.204724397 Inches

Length: 2.755905509 Inches

Width: 9.448818888 Inches

Weight: 1.9 Kilograms

  • Inch Set (7 PC) : 6#, 8#, 10#, 1/4'', 5/16'', 3/8'', 1/2''
  • Straight Shank
  • High Speed Steel

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Drill America DEWCBR Series Qualtech High-Speed Steel Pilot for Counterbore, 3/16" Shank Diameter, 1-3/4" Length, 1/4" Size (Pack of 1)

Search only Drill America brand name
Drill America DEWCBR Series Qualtech High-Speed Steel Pilot for Counterbore, 3/16

Current price: 11.29 USD


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Weight: 0.0220462262 Pounds

  • Inch Set (7 PC) : 6#, 8#, 10#, 1/4'', 5/16'', 3/8'', 1/2''
  • Straight Shank
  • High Speed Steel
  • 1/4-inches size
  • Available in 1-3/4-inches overall length
  • 3/16-inches shank diameter
  • High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance
  • Pilot for counterbore

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HHIP 2007-0016 1/4 x 9/32 HSS 3 Flute Solid Pilot Counterbore

Search only HHIP brand name
HHIP 2007-0016 1/4 x 9/32 HSS 3 Flute Solid Pilot Counterbore

Current price: 12.94 USD


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Height: 6 Inches

Length: 3 Inches

Width: 1 Inches

  • Inch Set (7 PC) : 6#, 8#, 10#, 1/4'', 5/16'', 3/8'', 1/2''
  • Straight Shank
  • High Speed Steel
  • 1/4-inches size
  • Available in 1-3/4-inches overall length
  • 3/16-inches shank diameter
  • High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance
  • Pilot for counterbore
  • Length 3"
  • Individual counterbores The pilot extends the full Length of the flute portion of the tool; High speed steel
  • Continuous pilot counterbores cut rapidly, smoothly and accurately, producing long spiraling chips rather than small metal particles Length 5"
  • Pilot Diameter 9/32"; Shank Diameter 3/8"
  • Cap Screw 1/4"; Cutter Diameter 13/32"

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7 PC HSS Counterbore Set Size #6 8 10 1/4-1/2 Cap Screws Expand Holes

Search only PROLINEMAX brand name
7 PC HSS Counterbore Set Size #6 8 10 1/4-1/2 Cap Screws Expand Holes

Current price: 53.99 USD


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Weight: 3 Pounds

  • Inch Set (7 PC) : 6#, 8#, 10#, 1/4'', 5/16'', 3/8'', 1/2''
  • Straight Shank
  • High Speed Steel
  • 1/4-inches size
  • Available in 1-3/4-inches overall length
  • 3/16-inches shank diameter
  • High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance
  • Pilot for counterbore
  • Length 3"
  • Individual counterbores The pilot extends the full Length of the flute portion of the tool; High speed steel
  • Continuous pilot counterbores cut rapidly, smoothly and accurately, producing long spiraling chips rather than small metal particles Length 5"
  • Pilot Diameter 9/32"; Shank Diameter 3/8"
  • Cap Screw 1/4"; Cutter Diameter 13/32"
  • Quantity: 1; Weight: 2.45 Lbs; Wooden Box Dimension: 4-7/8''L x 8-1/4''W x 1-1/2''H
  • Wooden Box INCLUDED ; High Speed Steel; Smooth Chip Flow And Powerful Cutting Resistance Because Of 3 Lips For Regrinding
  • Used For Expanding General Rough Hole Or Hole Processing For Bolts
  • Set Includes: #6 (Overall Length: 3'' Long) Cutter Dia: .242" Pilot: .150"
  • 7 PC HSS Counterbore Set

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7/8" Interchangeable Pilot Counterbore

Search only Meda - Superior Import brand name
7/8

Current price: 38.5 USD


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  • Inch Set (7 PC) : 6#, 8#, 10#, 1/4'', 5/16'', 3/8'', 1/2''
  • Straight Shank
  • High Speed Steel
  • 1/4-inches size
  • Available in 1-3/4-inches overall length
  • 3/16-inches shank diameter
  • High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance
  • Pilot for counterbore
  • Length 3"
  • Individual counterbores The pilot extends the full Length of the flute portion of the tool; High speed steel
  • Continuous pilot counterbores cut rapidly, smoothly and accurately, producing long spiraling chips rather than small metal particles Length 5"
  • Pilot Diameter 9/32"; Shank Diameter 3/8"
  • Cap Screw 1/4"; Cutter Diameter 13/32"
  • Quantity: 1; Weight: 2.45 Lbs; Wooden Box Dimension: 4-7/8''L x 8-1/4''W x 1-1/2''H
  • Wooden Box INCLUDED ; High Speed Steel; Smooth Chip Flow And Powerful Cutting Resistance Because Of 3 Lips For Regrinding
  • Used For Expanding General Rough Hole Or Hole Processing For Bolts
  • Set Includes: #6 (Overall Length: 3'' Long) Cutter Dia: .242" Pilot: .150"
  • 7 PC HSS Counterbore Set
  • Straight Shank
  • Short Series
  • High Speed Steel,

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Volterin Forstner 16 Pcs Drill Bit Set 15-35mm, Metal, Thin Stainless Steel Wood Tool Punching Bit Wood Slabs Flat Wing Drilling Hole Carbide Drilling Counterbore (16 PCS)

Search only Volterin brand name
Volterin Forstner 16 Pcs Drill Bit Set 15-35mm, Metal, Thin Stainless Steel Wood Tool Punching Bit Wood Slabs Flat Wing Drilling Hole Carbide Drilling Counterbore (16 PCS)

Current price: 24.99 USD

Saving: $5.00 (17%)


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Height: 0.1 Inches

Length: 0.1 Inches

Width: 0.1 Inches

  • Inch Set (7 PC) : 6#, 8#, 10#, 1/4'', 5/16'', 3/8'', 1/2''
  • Straight Shank
  • High Speed Steel
  • 1/4-inches size
  • Available in 1-3/4-inches overall length
  • 3/16-inches shank diameter
  • High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance
  • Pilot for counterbore
  • Length 3"
  • Individual counterbores The pilot extends the full Length of the flute portion of the tool; High speed steel
  • Continuous pilot counterbores cut rapidly, smoothly and accurately, producing long spiraling chips rather than small metal particles Length 5"
  • Pilot Diameter 9/32"; Shank Diameter 3/8"
  • Cap Screw 1/4"; Cutter Diameter 13/32"
  • Quantity: 1; Weight: 2.45 Lbs; Wooden Box Dimension: 4-7/8''L x 8-1/4''W x 1-1/2''H
  • Wooden Box INCLUDED ; High Speed Steel; Smooth Chip Flow And Powerful Cutting Resistance Because Of 3 Lips For Regrinding
  • Used For Expanding General Rough Hole Or Hole Processing For Bolts
  • Set Includes: #6 (Overall Length: 3'' Long) Cutter Dia: .242" Pilot: .150"
  • 7 PC HSS Counterbore Set
  • Straight Shank
  • Short Series
  • High Speed Steel,
  • Designed for durability and long life, creates a fine smooth finish.
  • Important Note: When you using this drill bit, the materials (eg. wood, plastic products, plywood ect.) temperature will get very high, please add some water or coolant to avoid the material get smoke.
  • Meich Forstner Drill Bit - Providing you a portable and DIY Woodworking Tool Drill, used for mounting spherical door shoot tip, drawer; perforation on wood products, plastic products, wood and plywood etc.
  • Size: 15mm(19/32in), 16mm(5/8in), 17mm(43/64in), 18mm(45/64in), 19mm(3/4in), 20mm(25/32in), 21mm(53/64in), 22mm(55/64in), 23mm(29/32in), 24mm(15/16in), 25mm(1in), 26mm(1-1/16in), 28mm(1-1/8in), 30mm(1-3/16in), 32mm(1-1/4in), 35mm(1-3/8in)
  • Package Included: 16 x Drill Bits

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Ruko 102453 Piloted Counterbore Set DIN 373 High-Speed Steel M3 - M10

Search only Ruko brand name
Ruko 102453 Piloted Counterbore Set DIN 373 High-Speed Steel M3 - M10

Current price: 79.6 USD


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  • Inch Set (7 PC) : 6#, 8#, 10#, 1/4'', 5/16'', 3/8'', 1/2''
  • Straight Shank
  • High Speed Steel
  • 1/4-inches size
  • Available in 1-3/4-inches overall length
  • 3/16-inches shank diameter
  • High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance
  • Pilot for counterbore
  • Length 3"
  • Individual counterbores The pilot extends the full Length of the flute portion of the tool; High speed steel
  • Continuous pilot counterbores cut rapidly, smoothly and accurately, producing long spiraling chips rather than small metal particles Length 5"
  • Pilot Diameter 9/32"; Shank Diameter 3/8"
  • Cap Screw 1/4"; Cutter Diameter 13/32"
  • Quantity: 1; Weight: 2.45 Lbs; Wooden Box Dimension: 4-7/8''L x 8-1/4''W x 1-1/2''H
  • Wooden Box INCLUDED ; High Speed Steel; Smooth Chip Flow And Powerful Cutting Resistance Because Of 3 Lips For Regrinding
  • Used For Expanding General Rough Hole Or Hole Processing For Bolts
  • Set Includes: #6 (Overall Length: 3'' Long) Cutter Dia: .242" Pilot: .150"
  • 7 PC HSS Counterbore Set
  • Straight Shank
  • Short Series
  • High Speed Steel,
  • Designed for durability and long life, creates a fine smooth finish.
  • Important Note: When you using this drill bit, the materials (eg. wood, plastic products, plywood ect.) temperature will get very high, please add some water or coolant to avoid the material get smoke.
  • Meich Forstner Drill Bit - Providing you a portable and DIY Woodworking Tool Drill, used for mounting spherical door shoot tip, drawer; perforation on wood products, plastic products, wood and plywood etc.
  • Size: 15mm(19/32in), 16mm(5/8in), 17mm(43/64in), 18mm(45/64in), 19mm(3/4in), 20mm(25/32in), 21mm(53/64in), 22mm(55/64in), 23mm(29/32in), 24mm(15/16in), 25mm(1in), 26mm(1-1/16in), 28mm(1-1/8in), 30mm(1-3/16in), 32mm(1-1/4in), 35mm(1-3/8in)
  • Package Included: 16 x Drill Bits
  • Great results at low cutting speed.
  • Great for burr-and chatter-less sinks in steel, cast iron, non-ferrous and light metals.
  • To produce cuts for cylinder head bolts, hex bolts and nuts.

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3/4" Aircraft Counterbore, Carbide Tipped, (Reduced Shank Counterbore), 1/4" Shank Diameter, 3 Flutes, 2 3/4" OAL, (.75" Diameter), 52224, USA Made

Search only Super Tool brand name
3/4

Current price: 82.2 USD


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Height: 0.75 Inches

Length: 2.75 Inches

Width: 0.75 Inches

Weight: 0.000625 Pounds

  • Inch Set (7 PC) : 6#, 8#, 10#, 1/4'', 5/16'', 3/8'', 1/2''
  • Straight Shank
  • High Speed Steel
  • 1/4-inches size
  • Available in 1-3/4-inches overall length
  • 3/16-inches shank diameter
  • High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance
  • Pilot for counterbore
  • Length 3"
  • Individual counterbores The pilot extends the full Length of the flute portion of the tool; High speed steel
  • Continuous pilot counterbores cut rapidly, smoothly and accurately, producing long spiraling chips rather than small metal particles Length 5"
  • Pilot Diameter 9/32"; Shank Diameter 3/8"
  • Cap Screw 1/4"; Cutter Diameter 13/32"
  • Quantity: 1; Weight: 2.45 Lbs; Wooden Box Dimension: 4-7/8''L x 8-1/4''W x 1-1/2''H
  • Wooden Box INCLUDED ; High Speed Steel; Smooth Chip Flow And Powerful Cutting Resistance Because Of 3 Lips For Regrinding
  • Used For Expanding General Rough Hole Or Hole Processing For Bolts
  • Set Includes: #6 (Overall Length: 3'' Long) Cutter Dia: .242" Pilot: .150"
  • 7 PC HSS Counterbore Set
  • Straight Shank
  • Short Series
  • High Speed Steel,
  • Designed for durability and long life, creates a fine smooth finish.
  • Important Note: When you using this drill bit, the materials (eg. wood, plastic products, plywood ect.) temperature will get very high, please add some water or coolant to avoid the material get smoke.
  • Meich Forstner Drill Bit - Providing you a portable and DIY Woodworking Tool Drill, used for mounting spherical door shoot tip, drawer; perforation on wood products, plastic products, wood and plywood etc.
  • Size: 15mm(19/32in), 16mm(5/8in), 17mm(43/64in), 18mm(45/64in), 19mm(3/4in), 20mm(25/32in), 21mm(53/64in), 22mm(55/64in), 23mm(29/32in), 24mm(15/16in), 25mm(1in), 26mm(1-1/16in), 28mm(1-1/8in), 30mm(1-3/16in), 32mm(1-1/4in), 35mm(1-3/8in)
  • Package Included: 16 x Drill Bits
  • Great results at low cutting speed.
  • Great for burr-and chatter-less sinks in steel, cast iron, non-ferrous and light metals.
  • To produce cuts for cylinder head bolts, hex bolts and nuts.
  • Set screw to hold a pilot or drill bit in place (if you are using a pilot or drill bit)
  • Minimum Cut Diameter: .219" Because there is a pilot hole the tool will not cut below this diameter.
  • Pilot Hole Diameter:3/16, If using a pilot this is the shank diameter of the pilot you should choose
  • 1/64" Corner Radius, Tool Diameter Tolerance: +.001"/-0". Shank Diameter Tolerance: +0"/-.001"
  • For counterboring and spotfacing in applications where machine requires a smaller shank

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Buwico 5PCS Forstner Drill Bit Set 15-35MM, Carbide Forstner Bits High Speed Steel Wood Tool Punching Bit Wood Slabs Flat Wing Drilling Hole Hinge Cemented Carbide Drilling Counterbore

Search only Buwico brand name
Buwico 5PCS Forstner Drill Bit Set 15-35MM, Carbide Forstner Bits High Speed Steel Wood Tool Punching Bit Wood Slabs Flat Wing Drilling Hole Hinge Cemented Carbide Drilling Counterbore

Current price: 13.67 USD


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  • Inch Set (7 PC) : 6#, 8#, 10#, 1/4'', 5/16'', 3/8'', 1/2''
  • Straight Shank
  • High Speed Steel
  • 1/4-inches size
  • Available in 1-3/4-inches overall length
  • 3/16-inches shank diameter
  • High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance
  • Pilot for counterbore
  • Length 3"
  • Individual counterbores The pilot extends the full Length of the flute portion of the tool; High speed steel
  • Continuous pilot counterbores cut rapidly, smoothly and accurately, producing long spiraling chips rather than small metal particles Length 5"
  • Pilot Diameter 9/32"; Shank Diameter 3/8"
  • Cap Screw 1/4"; Cutter Diameter 13/32"
  • Quantity: 1; Weight: 2.45 Lbs; Wooden Box Dimension: 4-7/8''L x 8-1/4''W x 1-1/2''H
  • Wooden Box INCLUDED ; High Speed Steel; Smooth Chip Flow And Powerful Cutting Resistance Because Of 3 Lips For Regrinding
  • Used For Expanding General Rough Hole Or Hole Processing For Bolts
  • Set Includes: #6 (Overall Length: 3'' Long) Cutter Dia: .242" Pilot: .150"
  • 7 PC HSS Counterbore Set
  • Straight Shank
  • Short Series
  • High Speed Steel,
  • Designed for durability and long life, creates a fine smooth finish.
  • Important Note: When you using this drill bit, the materials (eg. wood, plastic products, plywood ect.) temperature will get very high, please add some water or coolant to avoid the material get smoke.
  • Meich Forstner Drill Bit - Providing you a portable and DIY Woodworking Tool Drill, used for mounting spherical door shoot tip, drawer; perforation on wood products, plastic products, wood and plywood etc.
  • Size: 15mm(19/32in), 16mm(5/8in), 17mm(43/64in), 18mm(45/64in), 19mm(3/4in), 20mm(25/32in), 21mm(53/64in), 22mm(55/64in), 23mm(29/32in), 24mm(15/16in), 25mm(1in), 26mm(1-1/16in), 28mm(1-1/8in), 30mm(1-3/16in), 32mm(1-1/4in), 35mm(1-3/8in)
  • Package Included: 16 x Drill Bits
  • Great results at low cutting speed.
  • Great for burr-and chatter-less sinks in steel, cast iron, non-ferrous and light metals.
  • To produce cuts for cylinder head bolts, hex bolts and nuts.
  • Set screw to hold a pilot or drill bit in place (if you are using a pilot or drill bit)
  • Minimum Cut Diameter: .219" Because there is a pilot hole the tool will not cut below this diameter.
  • Pilot Hole Diameter:3/16, If using a pilot this is the shank diameter of the pilot you should choose
  • 1/64" Corner Radius, Tool Diameter Tolerance: +.001"/-0". Shank Diameter Tolerance: +0"/-.001"
  • For counterboring and spotfacing in applications where machine requires a smaller shank
  • It is simple to install and easy to use. It only needs to be installed on an ordinary hand drill. Working noise is low.
  • The opening is neat, smooth, without broken edges, and will not produce tremor. The cutting resistance is small, which increases the opening speed and eases chip removal.
  • Scope of application: This product series can produce the delicate perforations you need on various wooden boards, wooden products, plastics, plywood and other materials, suitable for industrial hinge installation, wood processing and maintenance, model making, installation of spherical door tips, drawer tips, etc. occasion.
  • Applicable tools: electric drill, bench drill, high power electric grinder, pneumatic drill, magnet drill, pistol drill with chuck greater than or equal to 10MM.
  • Specification: 15mm, 20mm, 25mm, 30mm, 35mm .Clear specification marks, easy to identify and convenient to choose .Advanced technology manufacturing, quality material, durable .

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7Pcs/set Counterbore Drill Bit Sets HSS Counterbore End Milling Cutter M3.2-M12.4 Countersink Drill Bits Pilot Slotting Milling Cutter End Mill Cutting Tool Set for Copper Aluminum Cast Iron

Search only WElinks brand name
7Pcs/set Counterbore Drill Bit Sets HSS Counterbore End Milling Cutter M3.2-M12.4 Countersink Drill Bits Pilot Slotting Milling Cutter End Mill Cutting Tool Set for Copper Aluminum Cast Iron

Current price: 30.99 USD


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  • Inch Set (7 PC) : 6#, 8#, 10#, 1/4'', 5/16'', 3/8'', 1/2''
  • Straight Shank
  • High Speed Steel
  • 1/4-inches size
  • Available in 1-3/4-inches overall length
  • 3/16-inches shank diameter
  • High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance
  • Pilot for counterbore
  • Length 3"
  • Individual counterbores The pilot extends the full Length of the flute portion of the tool; High speed steel
  • Continuous pilot counterbores cut rapidly, smoothly and accurately, producing long spiraling chips rather than small metal particles Length 5"
  • Pilot Diameter 9/32"; Shank Diameter 3/8"
  • Cap Screw 1/4"; Cutter Diameter 13/32"
  • Quantity: 1; Weight: 2.45 Lbs; Wooden Box Dimension: 4-7/8''L x 8-1/4''W x 1-1/2''H
  • Wooden Box INCLUDED ; High Speed Steel; Smooth Chip Flow And Powerful Cutting Resistance Because Of 3 Lips For Regrinding
  • Used For Expanding General Rough Hole Or Hole Processing For Bolts
  • Set Includes: #6 (Overall Length: 3'' Long) Cutter Dia: .242" Pilot: .150"
  • 7 PC HSS Counterbore Set
  • Straight Shank
  • Short Series
  • High Speed Steel,
  • Designed for durability and long life, creates a fine smooth finish.
  • Important Note: When you using this drill bit, the materials (eg. wood, plastic products, plywood ect.) temperature will get very high, please add some water or coolant to avoid the material get smoke.
  • Meich Forstner Drill Bit - Providing you a portable and DIY Woodworking Tool Drill, used for mounting spherical door shoot tip, drawer; perforation on wood products, plastic products, wood and plywood etc.
  • Size: 15mm(19/32in), 16mm(5/8in), 17mm(43/64in), 18mm(45/64in), 19mm(3/4in), 20mm(25/32in), 21mm(53/64in), 22mm(55/64in), 23mm(29/32in), 24mm(15/16in), 25mm(1in), 26mm(1-1/16in), 28mm(1-1/8in), 30mm(1-3/16in), 32mm(1-1/4in), 35mm(1-3/8in)
  • Package Included: 16 x Drill Bits
  • Great results at low cutting speed.
  • Great for burr-and chatter-less sinks in steel, cast iron, non-ferrous and light metals.
  • To produce cuts for cylinder head bolts, hex bolts and nuts.
  • Set screw to hold a pilot or drill bit in place (if you are using a pilot or drill bit)
  • Minimum Cut Diameter: .219" Because there is a pilot hole the tool will not cut below this diameter.
  • Pilot Hole Diameter:3/16, If using a pilot this is the shank diameter of the pilot you should choose
  • 1/64" Corner Radius, Tool Diameter Tolerance: +.001"/-0". Shank Diameter Tolerance: +0"/-.001"
  • For counterboring and spotfacing in applications where machine requires a smaller shank
  • It is simple to install and easy to use. It only needs to be installed on an ordinary hand drill. Working noise is low.
  • The opening is neat, smooth, without broken edges, and will not produce tremor. The cutting resistance is small, which increases the opening speed and eases chip removal.
  • Scope of application: This product series can produce the delicate perforations you need on various wooden boards, wooden products, plastics, plywood and other materials, suitable for industrial hinge installation, wood processing and maintenance, model making, installation of spherical door tips, drawer tips, etc. occasion.
  • Applicable tools: electric drill, bench drill, high power electric grinder, pneumatic drill, magnet drill, pistol drill with chuck greater than or equal to 10MM.
  • Specification: 15mm, 20mm, 25mm, 30mm, 35mm .Clear specification marks, easy to identify and convenient to choose .Advanced technology manufacturing, quality material, durable .
  • Reducing the number of tool changes, improve machine actuator movement rhythm, save mold making time, perfect for drilling copper, aluminum, tool steel, cast iron, etc.
  • Reducing the number of tool changes, improve machine actuator movement rhythm, save mold making time, perfect for drilling copper, aluminum, tool steel, cast iron, etc.
  • High toughness, abrasion resistance, high-speed and accurately cutting, can processing directly or fine processing to the heat treatment mold.
  • Size: M3.2 (3.2*5.9mm), M4.2 (4.2*7.4mm), M5.2 (5.2*8.9mm), M6.2 (6.2x10.4mm), M8.2 (8.2x13.4mm), M10.3 (10.3x16.8mm), M12.4 (12.4x18.8mm)
  • Made of high quality HSS, sturdy and durable, not easy to break, long service life.

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