hot sell titanium step drill bit hss stepped drill bits set
Step drill bits Made from high speed steel
For drilling cylindrical holes
Burr-free drilling
Hot sell titanium step drill bit hss stepped 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
You can drill different diameters holes with one step drill bits
