50Pcs Twist Drill Bit Set, Drillpro HSS Shank, Titanium Coated High Speed Steel,
❶ High Speed Steel: high hardness, good wear resistance and durability.
❷ Surface Titanium Coated: Increase the HARDNESS of the drill bit, Strengthen heat dissipation, make bit more WEAR-RESISTING.
❸ Easy to Removal Chip: spiral grooves with an oxide coating for quick removal.
❹ High Quality: suitable for drilling holes in alloy steel, wood, nonferrous metal, cast iron and hard plastics.
❺ 50 Pcs & 5 Sizes: 1mm, 1.5mm, 2mm, 2.5mm, 3mm, there are 10pcs of each size, total quantity is 50pcs.
Publisher: OUTDOOR ELETRONICS
Details:Twist Drill Bit is a tool that used to process holes in solid materials. It's the most widely used tool in the hole machining tool,and named for the spiral shape of its fluted grooves.
Material: High Speed Steel 4241 (HSS4241) Surface Treatment: Titanium Coated 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.
▲ Special Note： ● Mini twist drill bit can NOT be used in the impact drill. ● To avoid drill bit break, 1mm and 1.5mm bits should be used with pin vise. ● 2mm、2.5mm、3mm bits can be used with power drill, with low speed and low drilling pressure.
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