Zhongzuan (Chongqing ) Precision Tools Manufacturing Co., Ltd.
Professional manufacturer of drill bits and diamond tools in China.
Add to Cart
Hss Step Drill Bit Set Metal Drilling Bit For Aluminum Alloy Drilling
1. Zhongzuan step drill has high precision, durability, fast drilling, long life, complete specifications, complete specifications, high temperature resistance, and quality assurance
2. Sharp and no burrs, spiral angle chip removal more smoothly
3. One drill has multiple uses to meet different tasks. Stepped structure, with multiple drill bits of different specifications for one head
4. Fast cutting, smooth chip removal. Double spiral groove, sharp punching, reducing resistance, fast chip removal
5. Self-centering design, easy to locate: 118°X type opening design, effectively reducing opening slip.
6. Suitable for stainless steel, mold steel, PVC, copper, wood, iron plate, aluminum, plastic.
7. Easy opening, reaming and deburring.
Company Profiles
Zhongzuan(Chongqing)Precision Tool Manufacturing Co.,Ltd was found in 1995 and specialized in researching and producing high-quality hole saw bits and drill bits over 26 years,always aiming to be the leader and produce the best products. “ZhongZuan” was specially registered brand for overseas markets in 2007 from Changjiang Zuanshi,core products are Diamond hole saw bits,step drill,HSS twist drill bits,carbide drills and so on.
Scope of application
| HSS 4241 | Suitable for workpieces with hardness below 25°, such as iron plates, aluminum plates, and PVC plates. |
| HSS 6542(M2) | It is suitable for workpieces with hardness below 28°, such as iron plate, aluminum plate, sheet metal, and copper plate. |
| M35 contains cobalt | |
Drillable material