DESCRIPTION

 

[SEE THE VIDEO PLEASE!]

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Features:

  • 100% brand new and high quality
  • Unique ladder structure , it can open multiple Aperture
  • it can not easily be broken.
  • It can deburr, chamfer and open hole, but ordinary twist drill can't
  • Little rock, it can carve out a nice aperture without firstly using a center punch
  • Tool using: pistol drill, bench drill. Water to make ti cool while working, it can effectively extend the service life. Recommended drilling speed 250--400 rpm
  • Suit for use in hardness under 25° artifacts,The plate thickness under 5mm

Specifications:

  • 6-60mm(12 steps:6,10,15,20,25,30,35,40,45,50,55,60mm)
  • Shank Diameter: 12mm
  • Material: HSS 4241

Package Included:

  • 1pcs HSS 4241 Spiral groove step drill(15030011001)
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