This precision machined self-feed bit is optimized for 6X faster drilling*
The HERCULES™ 2-1/8 in. Self-Feed Bit is precision machined for 6X faster drilling* with minimal run-out. This means cleaner, precisely centered holes every time. The adjustable and removable feed screw pulls the bit straight into the workpiece for maximum power and speed. The cutting edge is resharpenable for extra long life.