3pcs/set HIgh Speed Steel Wood Steel Iron Metal Drilling Tools Hard Hex Shank Titanium Step Drill Bits 4-32 4-20 4-12



Surface treatment: Titanium

100% new and high quality

1, The ladder of its unique structure, a bit can open a variety of specifications of aperture.

2, Do not need to use center punch, compared with the ordinary twist drill is not easy to be broken.

3, Deburring, chamfering, elliptic hole enlargement, twist drill, the function of them was unable, but it is possible.

4, The use of tools: drill, bench drill.Work while water cooling, can effectively extend the service life of drill bit,

recommend drilling rate of 250-400 RPM.

4-32mm (4,6,8,10,12,14,16,18,20,22,24,26,28,30,32mm)

4-20mm (4,6,8,10,12,14,16,18,20mm)

4-12mm (4,6,8,10,12mm)

Packaging includes: 3 x step drill

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  • name: Step Drills
  • Model Number: miao-441
  • Brand Name: Halojaju
  • Style: Woodworking Drill Bit Set
  • Type: Metal Drilling
  • size: 4-32mm, 4-20mm, 4-12mm
  • DIY Supplies: Woodworking
  • is -customized: yes
  • Features: hard
  • Use: Wood Drilling
  • Surface treatment: Titanium
  • length: other
  • model number: Drill Bits
  • use: Deburring, chamfering, expanding open oval hole
  • Material: High Speed Steel
  • Appropriate tools: Pistol drill, bench drill

  • Package Size: 35cm x 10cm x 12cm (13.78in x 3.94in x 4.72in)
  • Package Weight: 0.25kg (0.55lb.)
  • Unit Type: lot (3 pieces/lot)