Hotiko 6-60mm HSS Step Drill Bit Large HSS Spiral Groove Step Drill Cone Drill Bit Hole Cutter 12 Steps

• [Material]: High Speed Steel (HSS).
• [Application]: Suitable to cut holes in a variety of material like iron plate, aluminum plate, insulation boards, PVC sheet, ect
• [Self starting]: No need for a pilot hole. Cobalt coated to reduce friction and run at cooler temperature.
• [Spiral Design]: Flute spiral blade design makes the cutting faster and smoother, and automatically deburred from the hole when the drill bit is drilled.
• [Package included]: 1 x 6-60mm HSS Groove Step Drill (12 Steps: 6mm, 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 55mm, 60mm)

Specifications: Material: High speed steel. HSS 4241 Quality: It is made of quality high speed steel, wear resistant, not easy to rust, has a long service life.Suit for use in hardness under 25 artifacts. Product Parameters: Model:6-60mm (0.24-2.36”). Sizes of the Step Drill Bits: 12 Steps (6mm, 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 55mm, 60mm) Fit Drill Tool: Fit deburring, chamfering, elliptical hole enlargement, twist drills, drills, table drills. Note: 1. Recommended drilling speed is 250-400 RPM. 2. Please add some water or coolant to avoid the material get smoke when using it. Package included: 1 x 6-60mm Drill Bit