Bosch (SF4621) 4-5/8 In. Self-Feed Drill Bit

Bosch self-feed drill bits are designed for the professional plumber and electrician who needs to make large, rough holes in wood. Bosch offers a complete line of wood boring bits for heavy-duty and fine woodworking applications. Replaceable blades (extra blade included) are optimal for professionals seeking to eliminate downtime and increase productivity.

Features: 

• 7/16 In. hex shank for reduced slippage (3 In. and larger three-flat shank)
• Replaceable threaded tip and hex key included
• Chip lifters and spurs can be re-sharpened to maximize bit life
• Deep cutter gullets prevent stalling and provide smoother drilling