Step drill

It is made of super-hard high-speed steel with a diameter from 4 mm to 40 mm and a combination of steps from 4 steps to 13 steps, including spiral grooves and straight grooves two types in total. It i

Introduction of Spiral flute step drill

Introduction of Straight flute step drill

Introduction of Step drill set

Page copyright zhejiang xinxing tools co., LTD 《Telecommunications and information service business license of the People's Republic of China》   Number: Zhejiang ICP No. 10206161