Features:Two-Fluted DesignFaster and smoother cutting with less presure on the top.Clearly ScaleEasy to found out the depth of the drill bitBuffer StripBuffer strip on each scale.Used for Wood,Plastic ,Auto Parts,Aerospace,Sheet Metal Processing.Shank: 1/4" Quick Change Hex Shank Finish: TitaniumMaterial: HSS (Suitable for use in the hardness below 25 degrees workpiece, such as carbon steel, the thickness of the plate of step is 5mm) Size:4-32mm (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm,30mm,32mm)4-20mm (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm)4-
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