Email: sales@usatoolandsupply.com | Phone: (888) 988-8820
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
Cart 0

Holemaking > Countersinks Chamfer Mills & Back Chamfers (ET04) - (7714 Products)

Holemaking > Countersinks Chamfer Mills & Back Chamfers (ET04)
Magafor - 5/8" Head Diam, 3/8" Shank Diam, 3 Flute 90° Cobalt Countersink - USA Tool & Supply

Magafor - 5/8" Head Diam, 3/8" Shank Diam, 3 Flute 90° Cobalt Countersink


Item #: 31285273
Brand: Magafor
Model #: 84483115870

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
Head Diameter (Inch) 5/8
Head Diameter (Decimal Inch) 0.6250
Number of Flutes 3
Included Angle 90
Countersink Material Cobalt
Countersink Finish/Coating TiN
Minimum Cutting Diameter (Inch) 0.1100
Shank Diameter (Inch) 3/8
Maximum Cutting Diameter (Inch) 5/8
Overall Length (Inch) 2-3/8
Minimum Hole Diameter (Decimal Inch) 0.1100
Maximum Hole Diameter (Decimal Inch) 0.6250
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) 0.6250
PSC Code 5133

$44.98

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

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

Zephyr Tool Group - 5/8" Cutter Capacity, 1/4-28 Nylon Adjustable Stop Countersink Cage - USA Tool & Supply

Zephyr Tool Group - 5/8" Cutter Capacity, 1/4-28 Nylon Adjustable Stop Countersink Cage


Item #: 66882580
Brand: Zephyr Tool Group
Model #: ZT330-SP-N

Product Specifications
Type Countersink Cage
Thread Size 1/4-28
Cutter Capacity (Inch) 5/8
Overall Length (Inch) 3-9/16
Depth Adjustment (Decimal Inch) 0.2810
Material Nylon
Shaft Diameter (Inch) 1/4
Shaft Type Round
PSC Code 5133

$163.41

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

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

Zephyr Tool Group - 3/4" Cutter Capacity, 1/4-28 Steel Adjustable Stop Countersink Cage - USA Tool & Supply

Zephyr Tool Group - 3/4" Cutter Capacity, 1/4-28 Steel Adjustable Stop Countersink Cage


Item #: 32243990
Brand: Zephyr Tool Group
Model #: ZT330-W

Product Specifications
Type Countersink Cage
Thread Size 1/4-28
Cutter Capacity (Inch) 3/4
Overall Length (Inch) 3-9/16
Depth Adjustment (Decimal Inch) 0.2810
Material Steel
Shaft Diameter (Inch) 1/4
Shaft Type Round
PSC Code 5133

$138.16

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

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

Zephyr Tool Group - 7/8" Cutter Capacity, 3/8-24 Steel Adjustable Stop Countersink Cage - USA Tool & Supply

Zephyr Tool Group - 7/8" Cutter Capacity, 3/8-24 Steel Adjustable Stop Countersink Cage


Item #: 32244006
Brand: Zephyr Tool Group
Model #: ZT331-W

Product Specifications
Type Countersink Cage
Thread Size 3/8-24
Cutter Capacity (Inch) 7/8
Overall Length (Inch) 5-15/16
Depth Adjustment (Decimal Inch) 0.2500
Shaft Diameter (Inch) 0.310
Shaft Type Round
PSC Code 5133

$341.52

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

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

Zephyr Tool Group - 3/8" Cutter Capacity, 1/4-28 Steel Adjustable Stop Countersink Cage - USA Tool & Supply

Zephyr Tool Group - 3/8" Cutter Capacity, 1/4-28 Steel Adjustable Stop Countersink Cage


Item #: 66888181
Brand: Zephyr Tool Group
Model #: ZT284-C

Product Specifications
Type Countersink Cage
Thread Size 1/4-28
Cutter Capacity (Inch) 3/8
Overall Length (Inch) 6
Depth Adjustment (Decimal Inch) 0.2810
Material Steel
Shaft Diameter (Inch) 1/2
Shaft Type Round
PSC Code 5133

$442.05

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

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

Zephyr Tool Group - 3/4" Cutter Capacity, 1/4-28 Steel Adjustable Stop Countersink Cage - USA Tool & Supply

Zephyr Tool Group - 3/4" Cutter Capacity, 1/4-28 Steel Adjustable Stop Countersink Cage


Item #: 66882598
Brand: Zephyr Tool Group
Model #: ZT680-S-TF

Product Specifications
Type Countersink Cage
Thread Size 1/4-28
Cutter Capacity (Inch) 3/4
Overall Length (Inch) 3-3/4
Depth Adjustment (Decimal Inch) 0.2500
Material Steel
Shaft Diameter (Inch) 1/4
Shaft Type Round
PSC Code 5133

$242.31

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

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

Zephyr Tool Group - 5/8" Cutter Capacity, 1/4-28 Steel Adjustable Stop Countersink Cage - USA Tool & Supply

Zephyr Tool Group - 5/8" Cutter Capacity, 1/4-28 Steel Adjustable Stop Countersink Cage


Item #: 32243388
Brand: Zephyr Tool Group
Model #: ZT330-SP-S

Product Specifications
Type Countersink Cage
Thread Size 1/4-28
Cutter Capacity (Inch) 5/8
Overall Length (Inch) 3-9/16
Depth Adjustment (Decimal Inch) 0.2810
Material Steel
Shaft Diameter (Inch) 1/4
Shaft Type Round
PSC Code 5133

$165.03

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, 3/8" Shank Diam, 3 Flute 82° High Speed Steel Countersink - USA Tool & Supply

Value Collection - 5/8" Head Diam, 3/8" Shank Diam, 3 Flute 82° High Speed Steel Countersink


Item #: 45659703
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 3
Included Angle 82
Countersink Material High Speed Steel
Shank Diameter (Inch) 3/8
Overall Length (Inch) 2-1/4
PSC Code 5133

$24.90

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): 16.50 Number of Flutes: 3 - USA Tool & Supply

Magafor - Countersinks Head Diameter (mm): 16.50 Number of Flutes: 3


Item #: 98914641
Brand: Magafor
Model #: 8443A165000

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): 16.50 ; Number of Flutes: 3 ; Included Angle: 90 ; Countersink Material: Cobalt ; Countersink Finish/Coating: Bright ; Minimum Cutting Diameter (mm): 3.20
Head Diameter (mm) 16.50
Number of Flutes 3
Included Angle 90
Countersink Material Cobalt
Countersink Finish/Coating Bright
Minimum Cutting Diameter (mm) 3.20
Shank Diameter (mm) 10.00
Overall Length (mm) 60
Countersink Application Countersinking
End Type Single
Shank Type Straight
Shank Material Cobalt
Includes Pilot No
Cutting Direction Right Hand

$49.20

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 - Countersink - USA Tool & Supply

Value Collection - Countersink


Item #: 40979791
Brand: Value Collection
Model #:

Product Specifications
PSC Code 5133

$25.06

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

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

Magafor - 20.5mm Head Diam, 25/64" Shank Diam, 90° Cobalt Countersink - USA Tool & Supply

Magafor - 20.5mm Head Diam, 25/64" Shank Diam, 90° Cobalt Countersink


Item #: 95431805
Brand: Magafor
Model #: 84493620500

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) 20.50
Head Diameter (Decimal Inch) 0.8070
Included Angle 90
Countersink Material Cobalt
Minimum Cutting Diameter (Inch) 1/8
Shank Diameter (mm) 10.00
Shank Diameter (Decimal Inch) 0.3940
Shank Diameter (Inch) 25/64
Maximum Cutting Diameter (Inch) 13/16
Overall Length (Inch) 2-1/2
Countersink Application Countersinking
Maximum Hole Diameter (Decimal Inch) 0.8070
End Type Single
Shank Type Straight
Cutting Direction Right Hand
Maximum Cutting Diameter (Decimal Inch) 0.8070
PSC Code 5133

$76.58

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): 20.50 Number of Flutes: 3 - USA Tool & Supply

Magafor - Countersinks Head Diameter (mm): 20.50 Number of Flutes: 3


Item #: 98915036
Brand: Magafor
Model #: 8443A205000

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): 20.50 ; Number of Flutes: 3 ; Included Angle: 90 ; Countersink Material: Cobalt ; Countersink Finish/Coating: Bright ; Minimum Cutting Diameter (mm): 3.50
Head Diameter (mm) 20.50
Number of Flutes 3
Included Angle 90
Countersink Material Cobalt
Countersink Finish/Coating Bright
Minimum Cutting Diameter (mm) 3.50
Shank Diameter (mm) 10.00
Overall Length (mm) 63
Countersink Application Countersinking
End Type Single
Shank Type Straight
Shank Material Cobalt
Includes Pilot No
Cutting Direction Right Hand

$59.57

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

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

Magafor - 1/2" Head Diam, 1/4" Shank Diam, 3 Flute 90° Cobalt Countersink - USA Tool & Supply

Magafor - 1/2" Head Diam, 1/4" Shank Diam, 3 Flute 90° Cobalt Countersink


Item #: 31285174
Brand: Magafor
Model #: 84483112700

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
Head Diameter (Inch) 1/2
Head Diameter (Decimal Inch) 0.5000
Number of Flutes 3
Included Angle 90
Countersink Material Cobalt
Countersink Finish/Coating TiN
Minimum Cutting Diameter (Inch) 0.1000
Shank Diameter (Inch) 1/4
Maximum Cutting Diameter (Inch) 1/2
Overall Length (Inch) 2
Minimum Hole Diameter (Decimal Inch) 0.1000
Maximum Hole Diameter (Decimal Inch) 0.5000
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) 0.5000
PSC Code 5133

$41.06

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

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

Magafor - 6.3mm Head Diam, 15/64" Shank Diam, 90° Solid Carbide Countersink - USA Tool & Supply

Magafor - 6.3mm Head Diam, 15/64" Shank Diam, 90° Solid Carbide Countersink


Item #: 95394904
Brand: Magafor
Model #: 888431L0630

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.
Product Specifications
Head Diameter (mm) 6.30
Head Diameter (Decimal Inch) 0.2480
Included Angle 90
Countersink Material Solid Carbide
Minimum Cutting Diameter (Inch) 3/64
Shank Diameter (mm) 6.00
Shank Diameter (Decimal Inch) 0.2360
Shank Diameter (Inch) 15/64
Maximum Cutting Diameter (Inch) 1/4
Overall Length (Inch) 3-5/16
Maximum Hole Diameter (Decimal Inch) 0.2480
End Type Single
Shank Type Straight
Cutting Direction Right Hand
Maximum Cutting Diameter (Decimal Inch) 0.2480
PSC Code 5133

$165.89

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

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

Magafor - 3/8" Head Diam, 1/4" Shank Diam, 3 Flute 90° Cobalt Countersink - USA Tool & Supply

Magafor - 3/8" Head Diam, 1/4" Shank Diam, 3 Flute 90° Cobalt Countersink


Item #: 31285372
Brand: Magafor
Model #: 84483109520

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
Head Diameter (Inch) 3/8
Head Diameter (Decimal Inch) 0.3750
Number of Flutes 3
Included Angle 90
Countersink Material Cobalt
Countersink Finish/Coating TiN
Minimum Cutting Diameter (Inch) 0.0850
Shank Diameter (Inch) 1/4
Maximum Cutting Diameter (Inch) 3/8
Overall Length (Inch) 2
Minimum Hole Diameter (Decimal Inch) 0.0850
Maximum Hole Diameter (Decimal Inch) 0.3750
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) 0.3750
PSC Code 5133

$34.07

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

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

Guhring - 8.3mm Head Diam, 6mm Shank Diam, 3-Flute 90° Cobalt Countersink - USA Tool & Supply

Guhring - 8.3mm Head Diam, 6mm Shank Diam, 3-Flute 90° Cobalt Countersink


Item #: 90263948
Brand: Guhring
Model #: 9055010083000

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
Head Diameter (mm) 8.30
Number of Flutes 3
Included Angle 90
Countersink Material Cobalt
Countersink Finish/Coating TiAlN
Minimum Cutting Diameter (mm) 2.00
Shank Diameter (mm) 6.00
Overall Length (mm) 50
Minimum Hole Diameter (Decimal Inch) 0.0984
End Type Single
Shank Material Cobalt
Includes Pilot No
Countersink Head Only No
Attachment Method Shank
Cutting Direction Right Hand

$53.00

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 - 5/16" Head Diam, 1/4" Shank Diam, 1 Flute 82° High Speed Steel Countersink - USA Tool & Supply

Value Collection - 5/16" Head Diam, 1/4" Shank Diam, 1 Flute 82° High Speed Steel Countersink


Item #: 45659794
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) 5/16
Number of Flutes 1
Included Angle 82
Countersink Material High Speed Steel
Shank Diameter (Inch) 1/4
Overall Length (Inch) 1-5/8
PSC Code 5133

$14.39

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 - 2-1/2" OAL, 3/8" Head Diam, 2 Flute, 100° Incl Angle, Integral Pilot, Adjustable Stop Countersink - USA Tool & Supply

Made in USA - 2-1/2" OAL, 3/8" Head Diam, 2 Flute, 100° Incl Angle, Integral Pilot, Adjustable Stop Countersink


Item #: 04615373
Brand: Made in USA
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.
Straight shanks are used for general purpose applications. The shank is smaller than the drill bit diameter. They are used with portable drills and drill presses on ferrous and non-ferrous materials.
Product Specifications
Head Diameter (Inch) 3/8
Included Angle 100
Countersink Material High Speed Steel
Shank Thread Size 1/4-28
Overall Length (Inch) 2-1/2
Pilot Type Integral
Pilot Diameter (Wire) #11
Pilot Diameter (Decimal Inch) 0.1910
Number of Flutes 2
Countersink Finish/Coating Bright
Attachment Method Threaded Shank
Shank Length (Inch) 1-3/4
Shank Diameter (Inch) 3/16
Shank Type Straight
Countersink Application Countersinking
Cutting Direction Right Hand
Centerline Angle 50

$17.92

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

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

Cleveland - Countersink Sets Countersink Type: Zero Flute Minimum Head Diameter (Inch): 5/16 - USA Tool & Supply

Cleveland - Countersink Sets Countersink Type: Zero Flute Minimum Head Diameter (Inch): 5/16


Item #: 16390015
Brand: Cleveland
Model #: C94591

Features and Benefits

Cobalt is harder than high speed steel and provides better wear resistance. It is commonly used on high tensile alloys.
Straight shanks are used for general purpose applications. The shank is smaller than the drill bit diameter. They are used with portable drills and drill presses on ferrous and non-ferrous materials.

Product Specifications

Countersink Sets; Countersink Type: Zero Flute ; Minimum Head Diameter (Inch): 5/16 ; Maximum Head Diameter (Inch): 5/8 ; Minimum Included Angle: 100.00 ; Maximum Included Angle: 100.00 ; Number of Flutes: 0
Countersink Type Zero Flute
Minimum Head Diameter (Inch) 5/16
Maximum Head Diameter (Inch) 5/8
Minimum Included Angle 100.00
Maximum Included Angle 100.00
Number of Flutes 0
Countersink Material Cobalt
Number of Pieces 4.000
Countersink Finish/Coating Bright
Set Includes (4) Countersinks
Countersink Application Countersinking; Deburring
Storage Unit Type Tube
Shank Diameter (mm) 6.350; 7.9375; 9.525
Shank Diameter (Decimal Inch) (2) 0.2500
Shank Diameter (Inch) (2) 0.2500
Storage Unit Material Plastic
Minimum Shank Diameter (Inch) 0.25
Maximum Shank Diameter (Inch) 0.375
Included Angle 100
Maximum Overall Length (Inch) 2.125
Minimum Overall Length (Inch) 1.625
Shank Type Straight
Includes Pilot No
PSC Code 3455
Cutting Direction Right Hand
Material Application2 Low Carbon Steel; Alloy Steel; Austenitic Stainless Steel; Aluminum; Non-Ferrous Materials
Material Application Low Carbon Steel; Alloy Steel; Austenitic Stainless Steel; Aluminum; Non-Ferrous Materials

$180.91

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): 31.00 Number of Flutes: 3 - USA Tool & Supply

Magafor - Countersinks Head Diameter (mm): 31.00 Number of Flutes: 3


Item #: 98914807
Brand: Magafor
Model #: 84483A31000

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): 31.00 ; Number of Flutes: 3 ; Included Angle: 90 ; Countersink Material: Cobalt ; Countersink Finish/Coating: TiN ; Minimum Cutting Diameter (mm): 4.20
Head Diameter (mm) 31.00
Number of Flutes 3
Included Angle 90
Countersink Material Cobalt
Countersink Finish/Coating TiN
Minimum Cutting Diameter (mm) 4.20
Shank Diameter (mm) 12.00
Overall Length (mm) 71
Countersink Application Countersinking
End Type Single
Shank Type Straight
Shank Material Cobalt
Includes Pilot No
Cutting Direction Right Hand

$155.89

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

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