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Single End Countersinks - 387 - Blowout Sale! Save up to 52%


Blowout Sale! Up to 52% off on Single End Countersinks at In The National Interest. Top brands include Drill America, KEO Cutters, Morse Cutting Tools, Kodiak Cutting Tools, HHIP, & F&D Tool Company. Hurry! Limited time offers. Offers valid only while supplies last.



Drill America DEWMSK Series High-Speed Steel Machine Countersink, 4 Flute, 1/2'' Shank Diameter, 3/4'' Size, 60 Degrees Angle (Pack of 1)
Drill America DEWMSK Series High-Speed Steel Machine Countersink, 4 Flute, 1/2" Shank Diameter, 3/4" Size, 60 Degrees Angle (Pack of 1)
By Drill America
In Stock
$21.24

mpn: DEWMSK3/4-60, ean: 0887861131773,

Drill America DEWMSK series 4 flute machine countersink is designed for countersinking holes for centers or for enlarge existing holes. High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toug...


Drill America DEWCSK Series High-Speed Steel Center Reamer Countersink, 3 Flute, 1/2'' Shank Diameter, 1'' Size, 60 Degrees Angle (Pack of 1)
Drill America DEWCSK Series High-Speed Steel Center Reamer Countersink, 3 Flute, 1/2" Shank Diameter, 1" Size, 60 Degrees Angle (Pack of 1)
By Drill America
In Stock
$25.27
$20.53
You Save: 19%

mpn: DEWCSK1-60, ean: 0887861131629,

Drill America DEWCSK Series 3 flute countersink is designed for countersinking holes for centers or for enlarge existing holes. High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness fo...


Drill America DEWCHAT Series High-Speed Steel Chatterless Countersink, 6 Flute, 3/4'' Shank Diameter, 1-1/2'' Size, 90 Degrees Angle (Pack of 1)
Drill America DEWCHAT Series High-Speed Steel Chatterless Countersink, 6 Flute, 3/4" Shank Diameter, 1-1/2" Size, 90 Degrees Angle (Pack of 1)
By Drill America
In Stock
$57.82

mpn: DEWCHAT1-1/2-90, ean: 0887861132411,

Drill America DEWCHAT Series 6 Flute chatterless countersink is designed to provide more metal removal then the 1,2,3, and 4 flute countersinks. They are also more effective on harder materials. High-speed steel tools are good for most general purpos...


KEO 53518 Cobalt Steel Single-End Countersink Set, Uncoated (Bright) Finish, 82 Degree Point Angle, 5/16'' - 5/8'' Head Diameter
KEO 53518 Cobalt Steel Single-End Countersink Set, Uncoated (Bright) Finish, 82 Degree Point Angle, 5/16" - 5/8" Head Diameter
By KEO Cutters
In Stock
$74.25

mpn: 53518,

Straight shank, CNC precision cam ground, M35 cobalt, chatter-free cutting action. Made in Great Britain. Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless s...


KEO 53510 Cobalt Steel Single-End Countersink, Uncoated (Bright) Finish, 82 Degree Point Angle, Round Shank, 1/4'' Shank Diameter, 5/16'' Body Diameter
KEO 53510 Cobalt Steel Single-End Countersink, Uncoated (Bright) Finish, 82 Degree Point Angle, Round Shank, 1/4" Shank Diameter, 5/16" Body Diameter
By KEO Cutters
In Stock
$13.20

mpn: 53510, ean: 7241871119627,

KEO ZErO flute countersink and deburring tools are simple, all-purpose tools made of Cobalt that provide flawless countersinking and deburring. The chatter-free cutting action requires minimal power. The microsmooth CNC precision ground construction ...


KEO 53511 Cobalt Steel Single-End Countersink, Uncoated (Bright) Finish, 82 Degree Point Angle, Round Shank, 1/4'' Shank Diameter, 3/8'' Body Diameter
KEO 53511 Cobalt Steel Single-End Countersink, Uncoated (Bright) Finish, 82 Degree Point Angle, Round Shank, 1/4" Shank Diameter, 3/8" Body Diameter
By KEO Cutters
In Stock
$16.05
$14.99
You Save: 7%

mpn: 53511,

KEO ZErO flute countersink and deburring tools are simple, all-purpose tools made of Cobalt that provide flawless countersinking and deburring. The chatter-free cutting action requires minimal power. The microsmooth CNC precision ground construction ...


KEO 53512 Cobalt Steel Single-End Countersink, Uncoated (Bright) Finish, 82 Degree Point Angle, Round Shank, 5/16'' Shank Diameter, 1/2'' Body Diameter
KEO 53512 Cobalt Steel Single-End Countersink, Uncoated (Bright) Finish, 82 Degree Point Angle, Round Shank, 5/16" Shank Diameter, 1/2" Body Diameter
By KEO Cutters
In Stock
$17.15

mpn: 53512,

KEO ZErO flute countersink and deburring tools are simple, all-purpose tools made of Cobalt that provide flawless countersinking and deburring. The chatter-free cutting action requires minimal power. The microsmooth CNC precision ground construction ...


Drill America DEWCSK Series High-Speed Steel Center Reamer Countersink, 3 Flute, 1/2'' Shank Diameter, 7/8'' Size, 60 Degrees Angle (Pack of 1)
Drill America DEWCSK Series High-Speed Steel Center Reamer Countersink, 3 Flute, 1/2" Shank Diameter, 7/8" Size, 60 Degrees Angle (Pack of 1)
By Drill America
In Stock
$21.57
$19.54
You Save: 9%

mpn: DEWCSK7/8-60, ean: 0887861131575,

Drill America DEWCSK Series 3 flute countersink is designed for countersinking holes for centers or for enlarge existing holes. High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness fo...


Drill America Style 1 High-Speed Steel Countersink, 1/2'' Shank Diameter, 1-1/2'' Size, 82 Degrees Angle (Pack of 1)
Drill America Style 1 High-Speed Steel Countersink, 1/2" Shank Diameter, 1-1/2" Size, 82 Degrees Angle (Pack of 1)
By Drill America
In Stock
$117.55
$110.03
You Save: 6%

mpn: WELCS-48,

Drill America piloted 82 degrees countersink is high-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance. Weldon shanks feature a round shank with one of more flats ma...


Morse Cutting Tools 56158 Chatterless Countersinks, Solid Carbide, Bright Finish, 120 degree Split Point, 6 Flutes, 1/4'' Size
Morse Cutting Tools 56158 Chatterless Countersinks, Solid Carbide, Bright Finish, 120 degree Split Point, 6 Flutes, 1/4" Size
By Morse Cutting Tools
In Stock
$23.66
$11.29
You Save: 52%

mpn: 56158, ean: 0686125561581,

Cutting edge geometry designed to reduce chatter and harmonics. Six flutes allow higher feed rates and provide longer tool life due to distributing the cutting load over a greater number of teeth. The 1/4 diamer is solid carbide. The larger diameters...


Drill America DEWCSK Series High-Speed Steel Center Reamer Countersink, 3 Flute, 3/8'' Shank Diameter, 1/2'' Size, 120 Degrees Angle (Pack of 1)
Drill America DEWCSK Series High-Speed Steel Center Reamer Countersink, 3 Flute, 3/8" Shank Diameter, 1/2" Size, 120 Degrees Angle (Pack of 1)
By Drill America
In Stock
$10.93
$10.25
You Save: 6%

mpn: DEWCSK1/2-120, ean: 0887861131469,

Drill America DEWCSK Series 3 flute countersink is designed for countersinking holes for centers or for enlarge existing holes. High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness fo...


Kodiak Cutting Tools KCT118930 USA Made Solid Carbide Countersink, Single Flute, 82 Degree, 1/8'' Diameter
Kodiak Cutting Tools KCT118930 USA Made Solid Carbide Countersink, Single Flute, 82 Degree, 1/8" Diameter
By Kodiak Cutting Tools
In Stock
$20.54
$14.13
You Save: 31%

mpn: KCT118930,

1/8 Inch Diameter Solid Carbide Countersink - Single Flute 82 Degree Countersink.Made In the USA. 1/8 Shank diameter. 1-1/2 Overall Length. 1 Flutes. ...


KEO 53523 Cobalt Steel Single-End Countersink, Uncoated (Bright) Finish, 90 Degree Point Angle, Round Shank, 3/8'' Shank Diameter, 5/8'' Body Diameter
KEO 53523 Cobalt Steel Single-End Countersink, Uncoated (Bright) Finish, 90 Degree Point Angle, Round Shank, 3/8" Shank Diameter, 5/8" Body Diameter
By KEO Cutters
In Stock
$23.09

mpn: 53523,

KEO ZErO flute countersink and deburring tools are simple, all-purpose tools made of Cobalt that provide flawless countersinking and deburring. The chatter-free cutting action requires minimal power. The microsmooth CNC precision ground construction ...


Drill America TSC Series High-Speed Steel Countersink, 3/8'' Body Diameter, 100 Degrees Angle, 20 Pilot (Pack of 10)
Drill America TSC Series High-Speed Steel Countersink, 3/8" Body Diameter, 100 Degrees Angle, 20 Pilot (Pack of 10)
By Drill America
In Stock
$96.85
$96.53

mpn: TSC3/8-20P10, ean: 0887861237871,

Drill America TSC series countersink cutters may be used in all popular adjustable or micro-stop countersinking units utilizing a 1/4"-28 threaded shank drive. Made from the finest high speed tool steel. Precision ground to exacting tolerances and fo...


Drill America Style 2 High-Speed Steel Countersink, 3/8'' Shank Diameter, 33/64'' Size, 82 Degrees Angle, 1/4'' Pilot Size (Pack of 1)
Drill America Style 2 High-Speed Steel Countersink, 3/8" Shank Diameter, 33/64" Size, 82 Degrees Angle, 1/4" Pilot Size (Pack of 1)
By Drill America
In Stock
$25.34
$23.53
You Save: 7%

mpn: WELCS8-1,

Drill America piloted 82 degrees countersink is high-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance. Weldon shanks feature a round shank with one of more flats ma...


Kodiak Cutting Tools KCT119601 USA Made Solid Carbide Countersink, 6 Flute, 82 Degree, 3/8'' Diameter
Kodiak Cutting Tools KCT119601 USA Made Solid Carbide Countersink, 6 Flute, 82 Degree, 3/8" Diameter
By Kodiak Cutting Tools
In Stock
$33.40
$26.31
You Save: 21%

mpn: KCT119601,

3/8 Inch Diameter Solid Carbide Countersink - Six Flute 82 Degree Carbide Countersink.Made In the USA. 1/4" Shank Diameter. 2-1/2" Overall Length. 6 Flutes. ...


KEO 55786 Solid Carbide Single-End Countersink, TiALN Coated, 6 Flutes, 60 Degree Point Angle, Round Shank, 3/8'' Shank Diameter, 3/4'' Body Diameter
KEO 55786 Solid Carbide Single-End Countersink, TiALN Coated, 6 Flutes, 60 Degree Point Angle, Round Shank, 3/8" Shank Diameter, 3/4" Body Diameter
By KEO Cutters
In Stock
$98.37

mpn: 55786-TiALN,

KEO 6-flute line of countersinks are companions to our single flute countersinks and our 3- and 4-flute center reamer line. As a rule, the more edges per revolution, the greater amount of material that may be removed. We have designed the 6-flute too...


HHIP 2001-0036 1/4-3/4 Inch Indexable Countersink & Chamfer Tool, 82 Degree
HHIP 2001-0036 1/4-3/4 Inch Indexable Countersink & Chamfer Tool, 82 Degree
By HHIP
In Stock
$32.22
$24.68
You Save: 23%

mpn: 2001-0036, ean: 0769053004907,

Deburr and countersink large diameter holes. Positive rake for smooth cutting without chatter. Carbide indexable, no tool re-sharpening needed.Cutter Min-Maximim 1/4~3/4; Shank Diameter 1/2. Use Insert TCMT32.51; Insert Screw MLD-M40. Deburr and coun...


F&D Tool Company 26414-X114 Single Flute Countersinks, High Speed Steel, 100 Degrees, 1/2'' Diameter
F&D Tool Company 26414-X114 Single Flute Countersinks, High Speed Steel, 100 Degrees, 1/2" Diameter
By F&D Tool Company
In Stock
$14.97

mpn: 26414-X114,

These combined drills & countersinks are used for centering applications. They are appropriate for opening up a new or pre-existing hole.Single Flute Countersink. 100 Degrees - Diameter: 1/2. These single flute countersinks are manufactured with a...


Drill America DEWCHAT Series High-Speed Steel Chatterless Countersink, 6 Flute, 1/4'' Shank Diameter, 3/8'' Size, 100 Degrees Angle (Pack of 1)
Drill America DEWCHAT Series High-Speed Steel Chatterless Countersink, 6 Flute, 1/4" Shank Diameter, 3/8" Size, 100 Degrees Angle (Pack of 1)
By Drill America
In Stock
$20.67

mpn: DEWCHAT3/8-100, ean: 0887861132077,

Drill America DEWCHAT Series 6 flute chatterless countersink is designed to provide more metal removal then the 1,2,3, and 4 flute countersinks. They are also more effective on harder materials. High-speed steel tools are good for most general purpos...



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