CNC-K™ Precision Countersinks

Designed for CNC and NC Machining Applications

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Precision for Automated Machining

CNC-K countersinks are specifically engineered for the demands of CNC and NC machining centers.

Unlike standard countersinks, CNC-K tools feature tighter tolerances on all critical dimensions including body diameter, shank diameter, and included angle. This precision ensures consistent countersink depth and diameter in automated production environments.

Tight Tolerances
  • Body diameter: ±.0005"
  • Shank diameter: ±.0002"
  • Angle: ±15 minutes
  • Concentricity: .001" TIR
CNC Benefits
  • Consistent depth control
  • Repeatable results
  • Tool-to-tool consistency
  • Reduced setup time
CNC-K Precision Countersinks for CNC Machining
Available Configurations
  • Angles: 60°, 82°, 90°, 100°, 110°, 120°
  • Materials: HSS, Carbide
  • Sizes: 1/4" to 1" body
  • Flutes: 6-flute chatterless

CNC-K HSS Countersinks

Premium M2 high-speed steel with precision tolerances for CNC applications. Available in all 6 standard included angles.

Body Dia. Shank Dia. OAL Tool Name 60° EDP 82° EDP 90° EDP 100° EDP 110° EDP 120° EDP
1/4"3/16"1-1/2"CNC-K-1/4029700298002990030000301003020
3/8"1/4"1-3/4"CNC-K-3/8029710298102991030010301103021
1/2"3/8"2-1/8"CNC-K-1/2029720298202992030020301203022
5/8"3/8"2-3/8"CNC-K-5/8029730298302993030030301303023
3/4"1/2"2-11/16"CNC-K-3/4029740298402994030040301403024
7/8"1/2"2-13/16"CNC-K-7/8029750298502995030050301503025
1"1/2"2-13/16"CNC-K-1029760298602996030060301603026

CNC-K Carbide Countersinks

Solid carbide for maximum tool life in high-volume production and abrasive materials. Available in all 6 standard included angles.

Body Dia. Shank Dia. OAL Tool Name 60° EDP 82° EDP 90° EDP 100° EDP 110° EDP 120° EDP
1/4"3/16"1-1/2"CNC-K-1/4-W031200313003140031500316003170
3/8"1/4"2-1/4"CNC-K-3/8-W031210313103141031510316103171
1/2"3/8"2-1/2"CNC-K-1/2-W031220313203142031520316203172
5/8"3/8"2-5/8"CNC-K-5/8-W031230313303143031530316303173
3/4"1/2"2-3/4"CNC-K-3/4-W031240313403144031540316403174
7/8"1/2"2-7/8"CNC-K-7/8-W031250313503145031550316503175
1"1/2"3"CNC-K-1-W031260313603146031560316603176

CNC-K Double-Ended Countersinks

Two countersinks in one tool with CNC-K precision tolerances. When one end wears, flip for a fresh cutting edge.

HSS Double-Ended

Body Dia. OAL Tool Name 60° EDP 82° EDP 90° EDP 100° EDP 110° EDP 120° EDP
1/8"1-1/2"CNC-K-1/8-DE031770318503193032010320903217
3/16"1-7/8"CNC-K-3/16-DE031780318603194032020321003218
1/4"2"CNC-K-1/4-DE031790318703195032030321103219
5/16"2-1/8"CNC-K-5/16-DE031800318803196032040321203220
3/8"2-1/2"CNC-K-3/8-DE031810318903197032050321303221
1/2"3"CNC-K-1/2-DE031820319003198032060321403222
5/8"3-1/4"CNC-K-5/8-DE031830319103199032070321503223
3/4"3-1/2"CNC-K-3/4-DE031840319203200032080321603224

Carbide Double-Ended

Body Dia. OAL Tool Name 60° EDP 82° EDP 90° EDP 100° EDP 110° EDP 120° EDP
1/8"1-1/2"CNC-K-1/8-W-DE034230343103439034470345503463
3/16"1-7/8"CNC-K-3/16-W-DE034240343203440034480345603464
1/4"2"CNC-K-1/4-W-DE034250343303441034490345703465
5/16"2-1/8"CNC-K-5/16-W-DE034260343403442034500345803466
3/8"2-1/2"CNC-K-3/8-W-DE034270343503443034510345903467
1/2"3"CNC-K-1/2-W-DE034280343603444034520346003468
5/8"3-1/4"CNC-K-5/8-W-DE034290343703445034530346103469
3/4"3-1/2"CNC-K-3/4-W-DE034300343803446034540346203470

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