2Pcs 11mm High Speed Steel Twist Drill Bit with Hex Shank 143mm Length Enclosed Push Button Switches wear-resistant and corrosion-resistant zinc alloy

wear-resistant and corrosion-resistant zinc alloy material

* Output Rated Power: 720W

factory or apartments

Material: Zinc Alloy Chrome Finish

office appliance

2Pcs 11mm High Speed Steel Twist Drill Bit with Hex Shank 143mm Length Enclosed Push Button Switches wear-resistant and corrosion-resistant zinc alloyDescription: 1. Made of high speed steel with dual coating of gold titanium and black nitride for better lubrication, smoother drilling. Increase the hardness of the drill, with good wear resistance and durability. 2. Can drill with less force and good radial stability. Easier chip evacuation, better heat dissipation and increased drill durability. 3. Suitable for drilling holes in alloy steel, wood, nonferrous metal, cast iron and hard plastics. 4.