Countersink Bits Set, 4 or 9 Pc
Countersinking screws is a often used method for ensuring a flush surface, without bumps of screwheads getting in the way. These cross-hole countersinks are specially designed so that the trailing edge of the hole makes the cut, and they excel at ejecting chips as they drill. Made of strong steel, they ensure years of precision work.
Available in a 9 piece or 4 piece set.
- Additional information
- Description
Additional information
| Set | 9 Piece Set, 4 Piece Set |
|---|
Countersinking screws is a often used method for ensuring a flush surface, without bumps of screwheads getting in the way. These cross-hole countersinks are specially designed so that the trailing edge of the hole makes the cut, and they excel at ejecting chips as they drill. Made of strong steel, they ensure years of precision work.




The ThunderTwist’s TriCarb grade tip guarantees longer life with faster penetration due to increased chiseling action. ThunderTwist’s flute design, combined with copper brazing alloy creates the most reliable drill bit on the market. It is made with high quality American chrome-molybdenum nickel steel that is vacuum heat treated, and shot-peened for superior strength under the roughest conditions.







Made from S2 modified shock resistant steel for professional performance and durability. Featuring a patented spiral torsion zone absorbs impact and extends bit life. Proprietary precision CNC machined tips for excellent fit in fastener recess. Tested to outperform all leading brands in lifecycle and tip failure testing.






