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Center Drills (Combined Drills & Countersinks)
May 1, 2019
HSS Countersink- Six Flutes
May 1, 2019
HSS Countersinks – Three Flutes
Description
HSS Countersinks use?
HSS Countersinks are designed to produce accurate center holes in components which require matching between centers. countersinking is done using a countersink drill bit . You can purchase bits that are able to drill a pilot hole as well as countersink it.
What is countersinking?
Countersinking involves enlarging the rim of a pilot hole.Countersinking is especially necessary when working with hardwoods.
Why countersink?
You should only need to countersink a hole when working with countersink screws. countersinking a pilot hole allows a countersunk screw to sit flush with the surface of material, giving your work neat finish.
- Made from High Speed Steel.
- Designed for Counter Sinking Holes for Centers or for enlarging existing hole.
- Odd number of Flutes eliminates Chatter in most applications, while providing better accuracy than a Single Flute Countersink.
- Available in 60°, 82° or 90°.
| ITEM NO. | SIZE | SHANK DIA. | OVERALL LENGTH |
|---|---|---|---|
| STF-2435 | 1/4" | 3/16" | 1-1/2" |
| STF-2436 | 3/8" | 1/4" | 1-3/4" |
| STF-2437 | 1/2" | 3/8" | 2" |
| STF-2438 | 5/8" | 3/8" | 2-1/4" |
| STF-2439 | 3/4" | 1/2" | 2-5/8" |
| STF-2440 | 1" | 1/2" | 2-3/4" |
| STF-2441 | 1-1/4" | 3/4" | 3-1/2" |
| STF-2442 | 1-1/2" | 3/4" | 3-1/2" |
| STF-2443 | 2" | 3/4" | 3-3/4" |
| While Placing Order Please Mention 60 Degree, 82 Degree or 90 degree | |||
