4-Piece Unibit Step Drill Set 10228

Features and Benefits:

• Single flute cutting edge for greater control through steps
• 3 flatted shank prevents slipping in drill chuck
• Non-skid self starting to eliminate skidding and the need for center punching

Includes:

• UN1- 1/8"-1/2" step drill
• UN1- 1/8"-1/2" step drill
• UN3- 1/4"-3/4" step drill
• UN1T- 1/8"-1/2" titanium step drill