Features:- Good quality: 100% brand new and good quality, sharp and durable.
- Exquisite workmanship: titanium plating treatment enhances the hardness, wear resistance and corrosion resistance.
- Clever design: there is a small screw inside it, the attached small wrench can twist it, the small screw can adjust the length of drill bit.
- Function: it is suitable for drilling machines with chuck, for drilling on hard wood or wooden floor.
Specifications:- Material: the drill bit: HSS 4241; Chamfering device: 45#steel
- Surface treatment: Ti
- Handle diameter: 1/4 inch Round shank
- Drill bit diameter: 001:2.38mm; 002:2.78mm; 003:3.175mm; 004:3.56mm
- Chamfering device
001 diameter: 1class: 4.6mm; 2class:8.4mm; 3class: 9.3mm 002 diameter: 1class: 4.6mm; 2class:8.4mm; 3class: 9.3mm 003 diameter: 1class: 4.9mm; 2class:8.5mm; 3class: 9.3mm 004 diameter: 1class: 5.6mm; 2class:9.6mm; 3class: 10.9mmPackage Included:- 4pcs Round shank taper hole woodworking drill bits
- 1pcs Small wrench