4Pcs HSS Countersink Drill Bit Set Quick Change Shank Screw Sink Tool

Four piece set includes bits for drilling pilot holes for screw sizes 6#,8#,10# and 12#.

Special designed steel counter sleeve countersinks or counter bores pilot hole.

Adjustable counter sleeve depth with Allen wrench.

Standard shank is quick change compatible.

Drill and countersink for wood screws without changing bits.

Drilling length can be adjusted for various length screws simply by loosening and

tightening the setscrew.

Pre-drill and countersink to drive screws flush with the material surface or deep hole counter boring for driving screw heads below the surface.

Ultra-sharp flute clears chips efficiently and leaves a clean, smooth hole.

Adjustable drill bit length for desired screwed depth, and features a flattened shank for a no-slip countersink connection.

Countersink or counter bore clean, smooth holes for screws and fasteners

groove 1/4" shank is quick change and impact drill/driver compatible

Allen wrench for drill bit depth adjustment and pilot bit replacement

For use in wood and plastic



Package include:



4 x Countersink Drill Bits

1 x Shank specifications The diameter of 0 The diameter of 1 The diameter of 2 The diameter of 3 The diameter of 3 6# 2.3mm 4.62mm 7mm 10mm 49.4mm 8# 2.7mm 5.09mm 8.06mm 10mm 60.31mm 10# 3.15mm 5.09mm 8.06mm 10mm 62.6mm 12# 3.48mm 6mm 9.89mm 10mm 70.3mm



























a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a