Silverline Screw-Sink Set 4pce - Drills pilot, clearance hole and countersink in one operation for the most popular sized screws; 6, 8, 10 and 12 gauge. Includes replaceable HSS drill.
 
Features include:
For screws 6, 8, 10 & 12 gauge
Drills pilot, clearance & countersink in one operation
Includes replaceable HSS drill
 
1-2 working day lead time for delivery