5Pcs 5.5mm High Speed Steel Twist Drill Bit with Hex Shank 113mm Length 7mm(ID)x11mm(OD)x300mm(L) Package: 10 Pcs x Reduced

Package: 10 Pcs x Reduced Shank Twist Drill Bits

[ Application ] - Suitable for drywall

10pcs x Woodruff keys

Thread Size : M3

Inner Hole Diameter: 11

5Pcs 5.5mm High Speed Steel Twist Drill Bit with Hex Shank 113mm Length 7mm(ID)x11mm(OD)x300mm(L) Package: 10 Pcs x ReducedDescription: 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.