hot sell titanium step drill bit hss stepped drill bits set

Feature highlights：

Step drill bits Made from high speed steel

For drilling cylindrical holes

Burr-free drilling

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specification

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

hot sell titanium step drill bit hss stepped drill bits set