Thick Stainless Steel Step Drill Bit Metal Drilling Bit

Thick Stainless Steel Step Drill Bit Metal Drilling Bit​

1. One drill with multiple uses to meet different tasks. Stepped structure, with multiple drill bits of different specifications for one head
2. Fast cutting, smooth chip removal. Double spiral groove, sharp punching, reducing resistance, fast chip removal
3. Self-centering design, easy to locate: 118°X type opening design, effectively reducing opening slip.
4. Suitable for stainless steel, mold steel, PVC, copper, wood, iron plate, aluminum, plastic.
5. Easy opening, reaming and deburring.

Company Profiles

Heavy Drill (Chongqing) Precision Tool Manufacturing Co., Ltd. is a professional manufacturer of high-quality hole saws and drill bits. It was founded in 1995 and has 26 years of industry experience. It focuses on the development and manufacturing of hole saws and drill bits for power tools. Make the best hole saws and drills. The heavy drilling brand was registered in 2017 (formerly Yangtze River Diamond) in order to expand foreign markets. Heavy drilling products include diamond hole saws, step drills, high-speed steel twist drill bits, carbide hole saw bits, etc.

“Zhongzuan” is located in Chongqing, China and it covers about 11700 square meters. Registered capital reaches up to RMB 5millions and currently there are over 120 employees. “Zhongzuan” owns rich experience in the design,manufacturing as well as use. We’re dedicated to design products for complex processing condition,help clients solve various problems of products and provide professional solutions.ZhongZuan has been cooperating with customers from over 10 countries globally so far.

Scope of application

Lead time

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 2017 from Changjiang Zuanshi,core products are Diamond hole saw bits,HSS twist drill bits,carbide drills and so on.

Zhongzuan is located in Chongqing, China and it covers about 11700 square meters. Registered capital reaches up to RMB 5millions and currently there are over 120 employees. “Zhongzuan” owns rich experience in the design,manufacturing as well as use. We’re dedicated to design products for complex processing condition,help clients solve various problems of products and provide professional solutions.ZhongZuan has been cooperating with customers from over 10 countries globally so far.

Zhongzuan has professional technical personnel and experienced machine-tool operators,which makes us the capability of producing products with complex shapes and high-precision.Meanwhile, our professional after-sales team can quickly deal with customers on product quality and after-sales issues. Company is equipped with more than 100 sets of numerical control equipment and over 10 sets sophisticated detection equipment, which ensures the quality of massive production, at the same time, all steps from raw material procurement, processing, quality inspection, shipments will be strictly required to reach the standard, which makes our products more competitive in the international market so that our customers can also expand larger markets and make more profits.

Zhongzuan (Chongqing) Precision Tool Manufacturing Co., Ltd. is committed to improving product’s quality and management level, striving to become a modern enterprise with high-quality products, customer’s recognition, advanced technology and harmonious development.