DIN340 Long Shank Twist Drill Bit Metal Drilling Bit

DIN340 Long Shank Twist Drill Bit Metal Drilling Bit

1. Twist drill bits are widely used to cut round 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.
2. 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.

Company profile

ZhongZuan Tools is a professional manufacturer of drill bit, hole saw and diamond tools with 26-year industrial experience.We provide you with a range of power tools accessories for metal,glass,ceramics,marble,granite etc materials cutting. Core products cover diamond hole saw,diamond blade saw,diamond polishing pad,HSS drill bit,bi-metal hole saw,carbide drill bit and hole saw as well as other hand tools like glass cutter,glass suction cup. We have gained rich experience in our products’ design,manufacturing and use so that we can produce suitable products for any complicated processing conditions.ZhongZuan Tools always brings our customers best solutions to solve their any problems in application. We’re committed to improving our products quality and our management level.Always fight for becoming a harmoniously-developing modern enterprise with premium products from advanced technology and customers’ satisfaction.

Features

1. Grinding technology: Use powerful grinding wheel to make the blade groove more sharp and smooth,making the drill bit more durable.
2. Spiral groove:S - type spiral groove helps to remove chips easier and work more efficient.
3. 118° and 135° split points: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.

Specification

Application

Choose the most suitable HSS twist drill bits according to the processing requirement.

Picture show

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.