1. High-speed steel material drill bits can be stable and durabl
2. Easy to install, suitable for most of electric drill
3. Drilling need matching with cooling liquid, cooling liquid not included in the package.
Item Type: Drill Bits
Material: High-Speed Steel+Titanium Plating
Structure: Saw&Drill
Application: Woodworking, Aluminum Alloy, Plastic Board Drilling And Cut Grooving
This is a 3 in 1 serrated drill:
Function 1: Can be used as a drill
Function 2: Can be used as a sawtooth groove
Function 3: Can be used as a saw blade on the surface of wood
Product specifications: 3mm, 4mm, 5mm, 6mm, 6.5mm, 8mm