We ship from multiple warehouses throughout the USA
to get you what you need as fast as possible!
Millions of items in stock!
Fast online checkout - No account required
Cart 0

Holemaking Products - Countersinks, Chamfer Mills & Back Chamfers For Sale | All Tool & Supply - (6386 Products)


Guhring - Countersinks Head Diameter (Inch): 0.75 Number of Flutes: 3


Item #: 18937839
Brand: Guhring
Model #: 9056750190500

Features and Benefits

Cobalt is harder than high speed steel and provides better wear resistance. It is commonly used on high tensile alloys.
Titanium Aluminum Nitride (TiAlN) has a higher hardness and oxidation temperature versus TiN and TiCN. As a result, it is particularly advantageous for higher speed operations in a variety of steel machining applications.

Product Specifications

Countersinks; Head Diameter (Inch): 0.75 ; Number of Flutes: 3 ; Included Angle: 82.00 ; Countersink Material: Cobalt ; Countersink Finish/Coating: TiAlN ; Minimum Cutting Diameter (Inch): 0.21
Head Diameter (Inch) 0.75
Number of Flutes 3
Included Angle 82.00
Countersink Material Cobalt
Countersink Finish/Coating TiAlN
Minimum Cutting Diameter (Inch) 0.21
Shank Diameter (Inch) 1/2
Overall Length (Inch) 2-3/4
Countersink Application Countersinking
End Type Single
Shank Type 3-Flat
Includes Pilot No
Countersink Head Only No
Attachment Method Shank
Cutting Direction Right Hand
Material Application Cast Iron; Stainless Steels; Steel
Material Application2 Cast Iron; Stainless Steels; Steel

$105.04

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Magafor - 3/4" Head Diam, 1/2" Shank Diam, 1 Flute 60° Cobalt Countersink


Item #: 31206642
Brand: Magafor
Model #: 84422190500

Features and Benefits

Cobalt is harder than high speed steel and provides better wear resistance. It is commonly used on high tensile alloys.
Uncoated tools do not feature supportive treatments on the cutting edge. They are are used at reduced speeds for general applications on nonferrous metals.
Product Specifications
Head Diameter (Inch) 3/4
Head Diameter (Decimal Inch) 0.7500
Number of Flutes 1
Included Angle 60
Countersink Material Cobalt
Countersink Finish/Coating Uncoated
Minimum Cutting Diameter (Inch) 5/64
Shank Diameter (Inch) 1/2
Maximum Cutting Diameter (Inch) 3/4
Overall Length (Inch) 2-5/8
Minimum Hole Diameter (Inch) 5/64
Maximum Hole Diameter (Inch) 3/4
End Type Single
Shank Type Straight
Shank Material Cobalt
Includes Pilot No
Countersink Head Only No
Attachment Method Shank
Cutting Direction Right Hand
Maximum Cutting Diameter (Decimal Inch) 0.7500
PSC Code 5133

$42.34

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Sandvik Coromant - 1 Flute Polycrystalline Diamond Countersink


Item #: 49563018
Brand: Sandvik Coromant
Model #: 6010897

Features and Benefits

Polycrystalline diamond (PCD) brazed solid carbide is composed of synthetic diamond crystals brazed onto a carbide shank. It is commonly used in high-speed applications on nonferrous materials.
Uncoated tools do not feature supportive treatments on the cutting edge. They are are used at reduced speeds for general applications on nonferrous metals.
Product Specifications
Number of Flutes 1
Countersink Material Polycrystalline Diamond
Countersink Finish/Coating Uncoated
Overall Length (mm) 37
Overall Length (Decimal Inch) 1.4402
Countersink Application Countersinking
Attachment Method Threaded Shank
Thread Size 1/4-28
Cutting Direction Right Hand
Maximum Cutting Diameter (Decimal Inch) 0.1891
PSC Code 5133

$493.96

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Keo - 3/4" Head Diam, 3/8" Shank Diam, 3 Flute 60° Cobalt Countersink


Item #: 31484744
Brand: Keo
Model #: 54005

Features and Benefits

Cobalt is harder than high speed steel and provides better wear resistance. It is commonly used on high tensile alloys.
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
Product Specifications
Head Diameter (mm) 19.05
Head Diameter (Inch) 3/4
Head Diameter (Decimal Inch) 0.7500
Number of Flutes 3
Included Angle 60
Countersink Material Cobalt
Countersink Finish/Coating Bright
Minimum Cutting Diameter (mm) 19.05
Minimum Cutting Diameter (Inch) 3/4
Shank Diameter (mm) 9.65
Shank Diameter (Decimal Inch) 0.3750
Shank Diameter (Inch) 3/8
Shank Length (Inch) 1-1/2
Shank Length (Decimal Inch) 1.50
Overall Length (mm) 64
Overall Length (Inch) 2-1/2
Overall Length (Decimal Inch) 1.5000
End Type Single
Shank Type Straight
Shank Material Cobalt
Countersink Head Only No
Attachment Method Shank
Cutting Direction Right Hand
PSC Code 5133

$27.71

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Weldon - 25/64" Head Diam, 1/4" Shank Diam, 82° High Speed Steel Countersink


Item #: 02541381
Brand: Weldon
Model #: 98818-94-W

Features and Benefits

High speed steel (HSS) provides good wear resistance and can be used in general purpose applications on both ferrous and nonferrous materials.
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
Product Specifications
Head Diameter (Inch) 25/64
Included Angle 82
Countersink Material High Speed Steel
Countersink Finish/Coating Bright
Shank Diameter (Inch) 1/4
Overall Length (Inch) 1-5/8
Countersink Application Countersinking
Head Length (Inch) 3/4
Minimum Hole Diameter (Inch) 25/64
Maximum Hole Diameter (Inch) 9/64
End Type Single
Shank Type Straight
Includes Pilot No
Countersink Head Only No
Cutting Direction Right Hand
Centerline Angle 41
PSC Code 5133

$21.71

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Guhring - Countersinks Head Diameter (mm): 20.0000 Number of Flutes: 3


Item #: 18937631
Brand: Guhring
Model #: 9056700200000

Features and Benefits

High speed steel (HSS) provides good wear resistance and can be used in general purpose applications on both ferrous and nonferrous materials.
Titanium Aluminum Nitride (TiAlN) has a higher hardness and oxidation temperature versus TiN and TiCN. As a result, it is particularly advantageous for higher speed operations in a variety of steel machining applications.

Product Specifications

Countersinks; Head Diameter (mm): 20.0000 ; Number of Flutes: 3 ; Included Angle: 60.00 ; Countersink Material: High Speed Steel ; Countersink Finish/Coating: TiAlN ; Minimum Cutting Diameter (mm): 5.00
Head Diameter (mm) 20.0000
Number of Flutes 3
Included Angle 60.00
Countersink Material High Speed Steel
Countersink Finish/Coating TiAlN
Minimum Cutting Diameter (mm) 5.00
Shank Diameter (mm) 10.0000
Overall Length (mm) 67.0000
Countersink Application Countersinking
End Type Single
Shank Type Cylindrical
Includes Pilot No
Countersink Head Only No
Attachment Method Shank
Cutting Direction Right Hand
Material Application Cast Iron; Stainless Steels; Steel
Material Application2 Cast Iron; Stainless Steels; Steel

$92.07

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Guhring - Countersinks Head Diameter (Inch): 1 Number of Flutes: 3


Item #: 18938001
Brand: Guhring
Model #: 9056750254000

Features and Benefits

Cobalt is harder than high speed steel and provides better wear resistance. It is commonly used on high tensile alloys.
Titanium Aluminum Nitride (TiAlN) has a higher hardness and oxidation temperature versus TiN and TiCN. As a result, it is particularly advantageous for higher speed operations in a variety of steel machining applications.

Product Specifications

Countersinks; Head Diameter (Inch): 1 ; Number of Flutes: 3 ; Included Angle: 82.00 ; Countersink Material: Cobalt ; Countersink Finish/Coating: TiAlN ; Minimum Cutting Diameter (Inch): .25
Head Diameter (Inch) 1
Number of Flutes 3
Included Angle 82.00
Countersink Material Cobalt
Countersink Finish/Coating TiAlN
Minimum Cutting Diameter (Inch) .25
Shank Diameter (Inch) 1/2
Overall Length (Inch) 2-3/4
Countersink Application Countersinking
End Type Single
Shank Type 3-Flat
Includes Pilot No
Countersink Head Only No
Attachment Method Shank
Cutting Direction Right Hand
Material Application Cast Iron; Stainless Steels; Steel
Material Application2 Cast Iron; Stainless Steels; Steel

$154.04

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Magafor - 10.4mm Head Diam, 15/64" Shank Diam, 90° Cobalt Countersink


Item #: 61147906
Brand: Magafor
Model #: 84436104000

Features and Benefits

Cobalt is harder than high speed steel and provides better wear resistance. It is commonly used on high tensile alloys.
Product Specifications
Head Diameter (mm) 10.40
Head Diameter (Decimal Inch) 0.4100
Included Angle 90
Countersink Material Cobalt
Minimum Cutting Diameter (Inch) 3/32
Shank Diameter (mm) 6.00
Shank Diameter (Decimal Inch) 0.2360
Shank Diameter (Inch) 15/64
Maximum Cutting Diameter (Inch) 13/32
Overall Length (Inch) 1-3/4
Maximum Hole Diameter (Decimal Inch) 0.4100
End Type Single
Shank Type Straight
Cutting Direction Right Hand
Maximum Cutting Diameter (Decimal Inch) 0.4100
PSC Code 5133

$31.95

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Magafor - Countersinks Head Diameter (mm): 8.30 Number of Flutes: 3


Item #: 98914583
Brand: Magafor
Model #: 8443A083000

Features and Benefits

Cobalt is harder than high speed steel and provides better wear resistance. It is commonly used on high tensile alloys.
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.

Product Specifications

Countersinks; Head Diameter (mm): 8.30 ; Number of Flutes: 3 ; Included Angle: 90 ; Countersink Material: Cobalt ; Countersink Finish/Coating: Bright ; Minimum Cutting Diameter (mm): 2.00
Head Diameter (mm) 8.30
Number of Flutes 3
Included Angle 90
Countersink Material Cobalt
Countersink Finish/Coating Bright
Minimum Cutting Diameter (mm) 2.00
Shank Diameter (mm) 6.00
Overall Length (mm) 50
Countersink Application Countersinking
End Type Single
Shank Type Straight
Shank Material Cobalt
Includes Pilot No
Cutting Direction Right Hand

$32.18

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Guhring - Countersinks Head Diameter (mm): 6.0000 Number of Flutes: 3


Item #: 18937946
Brand: Guhring
Model #: 9056700160000

Features and Benefits

High speed steel (HSS) provides good wear resistance and can be used in general purpose applications on both ferrous and nonferrous materials.
Titanium Aluminum Nitride (TiAlN) has a higher hardness and oxidation temperature versus TiN and TiCN. As a result, it is particularly advantageous for higher speed operations in a variety of steel machining applications.

Product Specifications

Countersinks; Head Diameter (mm): 6.0000 ; Number of Flutes: 3 ; Included Angle: 60.00 ; Countersink Material: High Speed Steel ; Countersink Finish/Coating: TiAlN ; Minimum Cutting Diameter (mm): 4.00
Head Diameter (mm) 6.0000
Number of Flutes 3
Included Angle 60.00
Countersink Material High Speed Steel
Countersink Finish/Coating TiAlN
Minimum Cutting Diameter (mm) 4.00
Shank Diameter (mm) 10.0000
Overall Length (mm) 63.0000
Countersink Application Countersinking
End Type Single
Shank Type Cylindrical
Includes Pilot No
Countersink Head Only No
Attachment Method Shank
Cutting Direction Right Hand
Material Application Cast Iron; Stainless Steels; Steel
Material Application2 Cast Iron; Stainless Steels; Steel

$65.06

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Brand: USA Sealing / Part #: RS-BHS40-867


Item #: 94413119
Brand: USA Sealing
Model #: RS-BHS40-867

Product Specifications

Cell Type Closed
Material Buna-N
Thickness (Inch) 1/32
Length Type Standard
Shape Rectangle
Backing Type Acrylic Adhesive
Width (Inch) 2
Length (Inch) 36
Hardness Rating Medium
Color Black
Hardness Durometer 40A
Surface Texture Smooth
Minimum Temperature (Deg F - 3 Decimals) -30.000
Maximum Temperature (F) ( - 0 Decimals) 250.000
Tensile Strength (psi) 1500
Standards ASTM D2000 BF 410
Durometer Shore A 40A
Density (Lb./Cu. Ft.) 84

$15.81

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Brand: SHOWA / Part #: 8005S


Item #: 56988777
Brand: SHOWA
Model #: 8005S

Product Specifications

Primary Material Nitrile
Coating Material Nitrile
Length (Inch) 9-1/2
Powdered Yes
Finish Smooth
Thickness Range 7 mil & Thicker
Thickness (mil) 8.00
Grip Surface Smooth
Glove Size Small
Men's Size Small
Cuff Style Rolled
Grade Industrial
Static Dissipative No
Sterility Non-Sterile
Standards EN ISO 374-1:2016/Type B JKOPTA; EN ISO 374-5:2016
Cuff Type Rolled
Length (Decimal Inch - 4 Decimals) 9.5000
Fda Approved Yes

$27.35

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Magafor - Countersinks Head Diameter (mm): 12.40 Number of Flutes: 3


Item #: 98914898
Brand: Magafor
Model #: 84483A12400

Features and Benefits

Cobalt is harder than high speed steel and provides better wear resistance. It is commonly used on high tensile alloys.
Titanium Nitride (TiN) is a multi-purpose coating which increases chip flow in softer materials. The heat and hardness resistance allows the tool to run at higher speeds than uncoated tools.

Product Specifications

Countersinks; Head Diameter (mm): 12.40 ; Number of Flutes: 3 ; Included Angle: 90 ; Countersink Material: Cobalt ; Countersink Finish/Coating: TiN ; Minimum Cutting Diameter (mm): 2.80
Head Diameter (mm) 12.40
Number of Flutes 3
Included Angle 90
Countersink Material Cobalt
Countersink Finish/Coating TiN
Minimum Cutting Diameter (mm) 2.80
Shank Diameter (mm) 8.00
Overall Length (mm) 56
Countersink Application Countersinking
End Type Single
Shank Type Straight
Shank Material Cobalt
Includes Pilot No
Cutting Direction Right Hand

$54.70

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Guhring - 31mm Head Diam, 12mm Shank Diam, 3-Flute 90° High Speed Steel Countersink


Item #: 90264011
Brand: Guhring
Model #: 9055030310000

Features and Benefits

High speed steel (HSS) provides good wear resistance and can be used in general purpose applications on both ferrous and nonferrous materials.
Titanium Aluminum Nitride (TiAlN) has a higher hardness and oxidation temperature versus TiN and TiCN. As a result, it is particularly advantageous for higher speed operations in a variety of steel machining applications.
Product Specifications
Head Diameter (mm) 31.00
Number of Flutes 3
Included Angle 90
Countersink Material High Speed Steel
Countersink Finish/Coating TiAlN
Minimum Cutting Diameter (mm) 4.20
Shank Diameter (mm) 12.00
Overall Length (mm) 140
Minimum Hole Diameter (Decimal Inch) 0.2050
End Type Single
Shank Type Straight
Shank Material High Speed Steel
Includes Pilot No
Countersink Head Only No
Attachment Method Shank
Cutting Direction Right Hand

$301.18

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Brand: Deltronic / Part #: 0.3955 CLASS X


Item #: 89589329
Brand: Deltronic
Model #: 0.3955 CLASS X

Product Specifications

Diameter of Measurement (Decimal Inch) 0.3955
Tolerance (Decimal Inch) 0.00004
Material Tool Steel
Application For Production Inspection Requirements
Includes Certificate of Accuracy with NIST Traceability
Length (Inch) 3
Coating/Finish Micro

$27.10

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Made in USA - 1/2" Head Diam, 1/4" Shank Diam, 6 Flute 90° Solid Carbide Countersink


Item #: 60242336
Brand: Made in USA
Model #:

Features and Benefits

Solid carbide provides better rigidity than high speed steel. It is extremely heat resistant and used for high speed applications on cast iron, nonferrous materials, plastic and other tough-to-machine materials.
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
Product Specifications
Head Diameter (Inch) 1/2
Number of Flutes 6
Included Angle 90
Countersink Material Solid Carbide
Countersink Finish/Coating Bright
Shank Diameter (Inch) 1/4
Shank Length (Inch) 1-1/8
Overall Length (Inch) 2-1/4
Countersink Application Countersinking
End Type Single
Shank Type Straight
Includes Pilot No
Countersink Head Only No
Cutting Direction Right Hand
Centerline Angle 45
PSC Code 5133

$85.35

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Guhring - Countersinks Head Diameter (mm): 8.0000 Number of Flutes: 3


Item #: 18937995
Brand: Guhring
Model #: 9056710080000

Features and Benefits

High speed steel (HSS) provides good wear resistance and can be used in general purpose applications on both ferrous and nonferrous materials.
Titanium Aluminum Nitride (TiAlN) has a higher hardness and oxidation temperature versus TiN and TiCN. As a result, it is particularly advantageous for higher speed operations in a variety of steel machining applications.

Product Specifications

Countersinks; Head Diameter (mm): 8.0000 ; Number of Flutes: 3 ; Included Angle: 60.00 ; Countersink Material: High Speed Steel ; Countersink Finish/Coating: TiAlN ; Minimum Cutting Diameter (mm): 2.00
Head Diameter (mm) 8.0000
Number of Flutes 3
Included Angle 60.00
Countersink Material High Speed Steel
Countersink Finish/Coating TiAlN
Minimum Cutting Diameter (mm) 2.00
Shank Diameter (mm) 6.0000
Overall Length (mm) 50.0000
Countersink Application Countersinking
End Type Single
Shank Type 3-Flat
Includes Pilot No
Countersink Head Only No
Attachment Method Shank
Cutting Direction Right Hand
Material Application Cast Iron; Stainless Steels; Steel
Material Application2 Cast Iron; Stainless Steels; Steel

$54.22

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Allied Machine and Engineering - Adjustable Stop Countersink Cage


Item #: 12312195
Brand: Allied Machine and Engineering
Model #: RDCP-011-00168

Product Specifications

Adjustable Stop Countersink Cage -
Type Countersink Cage

$531.63

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Allied Machine and Engineering - Adjustable Stop Countersink Cage


Item #: 12316543
Brand: Allied Machine and Engineering
Model #: RSCQ-015-00176

Product Specifications

Adjustable Stop Countersink Cage -
Type Countersink Cage

$649.44

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It

Value Collection - 5/8" Head Diam, 1/2" Shank Diam, 6 Flute 82° High Speed Steel Countersink


Item #: 45659620
Brand: Value Collection
Model #:

Features and Benefits

High speed steel (HSS) provides good wear resistance and can be used in general purpose applications on both ferrous and nonferrous materials.
Product Specifications
Head Diameter (Inch) 5/8
Number of Flutes 6
Included Angle 82
Countersink Material High Speed Steel
Shank Diameter (Inch) 1/2
Overall Length (Inch) 2-3/4
PSC Code 5133

$36.02

2% Off All Online Orders
Use Code: 2%OFF

Best Price Guarantee - Email Us A Better Published Price and We'll Beat It