Active Member
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[China]
Address: CN,Chongqing,Chongqing,5-1-2 Attached To 175 Tianmazhi Road, Shapingba District
Contact name:Rose Tang
Zhongzuan (Chongqing ) Precision Tools Manufacturing Co., Ltd. |
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DIN338 Parallel Shank Oxide Black Twist 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.
2. HSS is one of tool steel.It’s more hard and wear-heat than
high-carbon steel as well as the cutting speed.
3. 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.
Twist drill material selection
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.
