2Pcs 13mm High Speed Steel Twist Drill Bit with Hex Shank 150mm Length 16 X 300mm can hold the bobbin firmly

can hold the bobbin firmly in place

Inner Distance: 10mm/0

Total Length: 84mm / 3

Total Length: 34cm/13

Length: 30cm/11

2Pcs 13mm High Speed Steel Twist Drill Bit with Hex Shank 150mm Length 16 X 300mm can hold the bobbin firmlyDescription: 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.