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: 10.9mm

Package Included:

  • 4pcs Round shank taper hole woodworking drill bits
  • 1pcs Small wrench
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