50Pcs Twist Drill Bit Set HSS Shank Titanium Coated High Speed Steel Mini Drill Bit Micro Exactness 1/1.5/2/2.5/3mm Perfect for Wood Plastic Steel and Aluminum Alloy
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- Twist Drill Bit is a tool that used to process holes in Firmmaterials. It's the most widely used tool in the hole machining tool,and named for the spiral shape of its fluted grooves. Specifications: Material: High Speed Steel 4241 (HSS4241) Material: High Speed Steel with Titanium coated sizes: 1mm, 1.5mm, 2mm, 2.5mm, 3mm Weight: 53 g Application: metal, wood, plastic, PVC and other handicraft industry drilling, high precision, improve efficiency. Working principle: the round hole of the workpiece is drilled through the rotary cutting of its relative fixed axis. Package Included: 10 x 1.0mm Drill Bit 10 x 1.5mm Drill Bit 10 x 2.0mm Drill Bit 10 x 2.5mm Drill Bit 10 x 3.0mm Drill Bit Total Quantity: 50pcs How to Use Twist Drill Bits? Ensure the left and right cutting edges of the drill are symmetrical when drilling. Observe the uniformity of the spark while drilling, adjust the pressure in time, and pay attention to the cooling of the bit. Note: 1.Mini twist drill bit can NOT be used in the impact drill. 2.To avoid drill bit break, 1mm and 1.5mm bits should be used with pin vise. 3.2mm、2.5mm、3mm bits can be used with power drill, with low speed and low drilling pressure. 4.This drill bit set can NOT be used in the impact drill.
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The main material is high-speed steel, with titanium and nitriding treatment.High speed steel is more abrasion resistant and durable than other metal materials. good wear resistance and durability. High Quality: suitable for drilling holes in alloy steel, wood, nonferrous metal, cast iron and hard plastics.Mainly for thinner, low hardness of wood and soft metal hole processing, for high hardness stainless steel and other materials can not be processed. Easy to Removal Chip: spiral grooves with an oxide coating for quick removal. Surface Titanium Coated: Increase the HARDNESS of the drill bit, Strengthen heat dissipation, make bit more WEAR-RESISTING.