STS Industrial - Bolts & Screws

 

COUNTERSINK BITS

Countersink drill bits are used to bevel the outer-facing edge of a previously drilled hole. 60° Countersinks are used for centering. 82° Countersinks are used for Countersinking flat head screws. 90° Countersinks are used for chamfering and deburring. 100° Countersinks are used to make screw and rivet holes.

Countersink Bits

  • SINGLE FLUTE COUNTERSINK:

    Single Flute Countersinks should be used when multi-flute countersinks chatter or the hole is too small for a multi-flute countersink to enter.

    Single Flute Countersink Bit

    Single Flute Countersink Bit Technical Data

  • 3 FLUTE CENTER REAMER COUNTERSINK:

    Center Reamers are designed for countersinking holes for flathead screws and rivets, in portable drilling applications.

    3 Flute Center Reamer Countersink

    3 Flute Center Reamer Countersink Technical Data

  • 4 FLUTE MACHINE COUNTERSINK:

    Four Flute Machine Countersinks have a longer shank to use in Turret lathes and for screw machine work.

    4 Flute Machine Countersink Bit

    4 Flute Machine Countersink Bit Technical Data

  •  6 FLUTE CHATTERLESS COUNTERSINK:

    Six Flute Chatterless Countersinks are designed for fast shearing cuts.

    6 Flute Chatterless Countersink Bit

    6 Flute Chatterless Countersink Bit Technical Data

  •  Fluteless Deburring Tool:

    Fluteless Deburring Tools are used to remove burrs from the edge of a countersunk hole.

    Deburring Tool

    Deburring Tool Technical Data

Sources: Drillco Cutting Tools Product Catalog 2013, Champion Cutting Tools 2011 Product Catalog, Norseman/CTD Product Catalog 2013

Note: All material included on this page is informational only, and should not be used as one’s sole source for design purposes. STS Industrial, Inc. and its affiliates do not guarantee the accuracy of the information on this site, and retain no liability for the use or misuse of the information contained on this site.