DIN338 Twist Drill Bit Set Metal Drilling Bit

DIN338 Twist Drill Bit Set Metal Drilling Bit​

M35/6542(M2)/4341 Twist drill bits are widely used to drill holes.A cutting point is on the top of a cylindrical shaft with spiral groove and chips will be removed through groove.HSS is one of tool steel.It’s more hard and wear-heat than high-carbon steel as well as the cutting speed.
HSS twist drill bits are widely used to drill stainless steel,alufer,copper and other metals. They are suitable for timber,pvc materials cutting as well.

1. HSS 4341/4241: Suitable for common metal cutting, like iron, copper, alufer and timber etc.
2. HSS 6542(m2): suitable for all types of metal, like stainless steel, iron, copper, alufer and wood etc.
3. M35: This type currently is the best one among HSS materials.It largely improves its rigidity due to its 5% content of cobalt.It’s suitable for cutting all kind of metals, like stainless steel, iron, copper, alufer, cast iron and 45# steel as well as wood, plastic etc.

118° and 135° split point

118 drill bits are more suitable for soft materials cutting,like mild steel or cast iron.
135 drill bits are suitable for hard steel,especially for hole diameter 4times as the drill bits’ diameter.The thick chips
produced when cut hard materials reduce the working hardening of the cavity.

Company profile

1. 26-year Industrial experience and covers area of 11700㎡ with 6 workshops
2. Procucts can be made as you required and OEM/ODM
3. Free samples can be sent for evaluation
4. Professional before&after-sales teams 24h-online to solve your any technical problems.

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.