HSS Countersinks – Three Flutes
Description
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. | SHANK SIZE | TOOL HOLDER SIZE | TOOL LENGTH | MIN. BORING / THREADING DIA., (APPROX.) |
|---|---|---|---|---|
| SBF-2746 | 4mm | 7mm x 7mm | 60mm | 7mm |
| SBF-2747 | 6mm | 9mm x 9mm | 95mm | 10mm |
| SBF-2748 | 6mm | 9mm x 9mm | 130mm | 10mm |
| SBF-2749 | 8mm | 11mm x 11mm | 140mm | 14mm |
| SBF-2750 | 10mm | 13mm x 13mm | 140mm | 16.5mm |
| SBF-2751 | 12mm | 15mm x 15mm | 140mm | 19mm |
