50Pcs Twist Drill Bit Set, DRILLPRO HSS Shank, Titanium Coated High Speed Steel, Mini Drill Bit, Micro Precision 1/1.5/2/2.5/3mm, Perfect for Wood, Plastic, Steel and Aluminum Alloy

50Pcs Twist Drill Bit Set, DRILLPRO HSS Shank, Titanium Coated High Speed Steel, Mini Drill Bit, Micro Precision 1/1.5/2/2.5/3mm, Perfect for Wood, Plastic, Steel and Aluminum Alloy

<b>Twist Drill Bit </b>is a tool that used to process holes in solid materials. <br/> It's the most widely used tool in the hole machining tool,and named for the spiral shape of its fluted grooves. <br/> <br/> <b>Material:</b> High Speed Steel 4241 (HSS4241)<br/> <b>Surface Treatment: </b>Titanium Coated<br/> <b>Weight:</b> 53 g<br/> <b>Application: </b>metal, wood, plastic, PVC and other handicraft industry drilling, high precision, improve efficiency.<br/> <b>Working principle:</b> the round hole of the workpiece is drilled through the rotary cutting of its relative fixed axis.<br/> <br/> <b>Package Included:</b><br/> 10 x 1.0mm Drill Bit<br/> 10 x 1.5mm Drill Bit<br/> 10 x 2.0mm Drill Bit<br/> 10 x 2.5mm Drill Bit<br/> 10 x 3.0mm Drill Bit<br/> Total Quantity: 50pcs<br/> <br/> <b>How to Use Twist Drill Bits?</b><br/> ●Ensure the left and right cutting edges of the drill are symmetrical when drilling.<br/> ●Observe the uniformity of the spark while drilling, adjust the pressure in time, and pay attention to the cooling of the bit.<br/> <br/> <b>▲ Special Note：</b><br/> ● Mini twist drill bit can NOT be used in the impact drill.<br/> ● To avoid drill bit break, 1mm and 1.5mm bits should be used with pin vise. <br/> ● 2mm、2.5mm、3mm bits can be used with power drill, with low speed and low drilling pressure.<br/> <br/> <b>√Why Choose DRILLPRO</b><br/> ▶Good quality and reliable brand.<br/> ▶Within 90 days product quality is not completely satisfied, please CONTACT US, 100% refund.<br/> ▶24-hour feedback excellent customer service<br/>