WD17030-3PCS HSS straight flute step drill bits set

the drill bits can drill cylindrical holes in solid material up to a thickness of 4mm(5/32")

Ideal tool for sheet metal workers, electrical contractor auto mechanics and general contractors

Burr-free and vibration-free drilling

titanium coated surface

contents

3pcs packed in plastic case

4-12mm with 5 steps, 4-20mm with 9 steps, 4-32mm with 15 steps