Sink hole Counter sink Router Bit Step Screw Drill Router Bits Counter sinking Drill Carpentry

Label:Yes Blade material: carbon steel Rod diameter: 8mm Rod type: Round rod Chamfer material: 45# steel Color: Silver + orange Material: YG8 Zinc Zinc Zinc Zinc Alloy (drill), 45# carbon steel The package includes:1 x drill bit

Product selling point: 1. Application: Used for spiral countersunk hole of aluminum Zinc Zinc Zinc Zinc Alloy 2. This step drill is used for countersunk holes and opening holes of aluminum screws. 3. It is durable, excellent material and fine workmanship. 4. Due to the surface spray treatment, the step drill has wear resistance.