5-35mm Core Drill Bit Silver/Titanium 13 Step Triangle Shank Hole Cutter Set High Speed Steel Woodworking Metal Drilling

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Please allow slight dimension difference due to different manual measurement.


  • 5-35mm HSS Step Drill Bit 13 Steps Round Shank Straight Flute Step Drill, sizes: 5-35mm(5,7,10,12,15,17,20,22,25,27,30,32,35mm).
  • Tri-flatted shank of step drill fits into drill chuck of power tools securely and avoids slide. Automatically deburr holes as you drill.
  • EASY DRILLING: Two-fluted design provides faster, smoother cutting; Provided with small pressure and the sets can cut through wood, sheet metal, steel and other surfaces.
  • Titanium high speed steel with high capability and durability in drilling holes in plastic, aluminum, copper, stainless steel and many other types of sheet metal.
  • Mainly used for drilling thin steel within 3mm and it can be completed a one-time processing according to the need to process different diameter holes.


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