Stepped drill cost-effective, Wing Mongolian masses grace

Aka stepped drill step drill or drill pagoda (English name Step Drill), mainly used in steel sheet 3mm less drilling, a drill bit can replace the use of multi-branch, according to the processing needs of different diameter hole, and can achieve large hole-time processing End
Cheng, do not need to replace the drill bit and playing positioning holes and the like.

The current overall level drill material is mainly high-speed steel, carbide, etc., high precision machining, according to different processing conditions may be surface coating, to extend tool life, enhance tool durability.

Stepped drill is widely used in important areas of machinery manufacturing, automobile processing, aerospace and other strikingly use. Stepped drill good quality, good to Tools Co., Ltd. Changzhou professional supply, your choice Oh!