Consolidated Toledo Drill - America's Finest High Speed Steel Cutting Tools
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HSS Left-Hand Spiral Drill


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A common use is to allow the head of a countersunk bolt or screw, when placed in the hole, to sit flush with or below the surface of the surrounding material (by comparison, a counter bore makes a flat-bottomed hole that might be used with a socket-head cap screw).

A countersink may also be used to remove the burr left from a drilling or tapping operation thereby improving the finish of the product and removing any hazardous sharp edges.

 


QUICK LINK » Chatterproof Countersinks

CHATTERPROOF™ COUNTERSINKS — Super Premium


HSS Type 82-AG Gold Oxide, 82° Piloted Countersinks
    HSS Type 82-AG Gold Oxide, 82° Piloted Countersinks


HSS Type 82-AG Gold Oxide, 82° Pilotless Countersinks
    HSS Type 82-AG Gold Oxide, 82° Pilotless Countersinks


HSS Type 90-AG Gold Oxide, 90° Deburring Tool
    HSS Type 90-AG Gold Oxide, 90° Deburring Tool
    Special Hi-Molybdenum tool steel, gold surface treated for maximum lubricity.
    • Designed for fast stock removal.
    Chatterproof™ — for a micro smooth finish.
    Recommended for smooth finishes on metal, plastic and wood applications.
    • Made in the U.S.A.
    HSS Piloted/Pilotless Countersinks and Deburring Tools DOWNLOAD: HSS Piloted/Pilotless Countersinks and Deburring Tools


Type SP-6DB 6pcs. Deburring Set
    Countersink and Deburring Sets
    SP-4CS — 82-AG C/S sizes: CS5S, CS65, CS5C, CS10S
    SP-4ACS — 82-AG C/S sizes: CS6S, CS8S, CS10S, CS3/16S
    SP-6DB — 90-AG D/B sizes: DB1/16, DB1/8, DB5/32, DB3/16, DB5/16, DB9/16
    SP-9CS — 82-AG C/S sizes: CS5S, CS6S, CS8C, CS10S, CS1/4, CS5/16, CS3/8, CS7/16, CS1/2