3Pcs HSS Straight Groove Step Drill Bit Set, 3-12mm, 4-12mm, 4-20mm
3Pcs HSS Straight Groove Step Drill Bit Set, 3-12mm, 4-12mm, 4-20mm
3Pcs HSS Straight Groove Step Drill Bit Set, 3-12mm, 4-12mm, 4-20mm
3Pcs HSS Straight Groove Step Drill Bit Set, 3-12mm, 4-12mm, 4-20mm

    3Pcs HSS Straight Groove Step Drill Bit Set, 3-12mm, 4-12mm, 4-20mm

    $ 29.95 $ 49.95
    Shipping calculated at checkout.
      DESCRIPTION


      • Products for automotive processing, aerospace, sheet metal processing,
      • Installation and maintenance of electrical and other industries,
      • High-altitude operations with hand drills and other tools.
       Feature :
      • The unique step structure, a variety of standard size drill carve aperture, a box arrived on a ladder drill bit.
      • Without the use of center punch, easy to break, a step drill specifications apply.
      • Deburring, chamfering, expanding the oval hole
      • Small sway, without leading to use a center punch can carve out a nice aperture.
      • Surface treatment: Titanium
       Package Included:
      • 1 x 3 PC HSS step drill
       

        

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