M35 Cobalt Double Ended Twist Drill Bits For Drill Stainless Steel
1. Double head design: More cost-efficient and durable
2. 135' sharpening: Slowly feeding makes it more durable and easy to position.
3. Sprial chip flutes effectively prevent the accumulation of debris,high-speed operation and quickly remove chips.
4. Widely used to drill stainless steel,iron,aluminum plate as well as wood etc.
Company Profile
ZhongZuan(Chongqing)Precision Tool Manufacturing Co.,Ltd was founded in 1995 and has been specialized in researching and developing and producing the high-quality hole saw bits and drill bits of electric tools for 26 years. Factory is located in Chongqing, China and has an area of 11700 square meters with registered capital over RMB 5millions and over 120 employees. Our core products are diamond hole saw bits, HSS twist drill bits and alloy hole saw and drill bits, so far we have been cooperated with customers from over 10 countries in the world.
We have completely established a set of effective quality management system and strictly implemented the quality standards required by customers in the production process like from the selection/ inspection of raw materials to process control and the final inspection of finished products to improve the products’ quality which help reduce the rate of unqualified.Meanwhile, company regularly carries out the internal audit and management review of the quality system to correct the problems in the operation in time so that our products will have more market competitiveness in the industry.
Product specifications
| Diameter | Total length | Working length |
| 3.0mm | 46mm | 11mm |
| 3.2mm | 49mm | 14mm |
| 3.5mm | 49mm | 15mm |
| 4.0mm | 49mm | 16mm |
| 4.2mm | 50mm | 17mm |
| 4.5mm | 52mm | 18mm |
| 5.0mm | 57mm | 19mm |
| 5.2mm | 58mm | 20mm |
