ITEM NAME:3Pcs M35 Cobalt Step Drill Bit 3-12/4-12/4-20Mm Step Drill Cutter Pagoda Sh A5G7 ☆★ Product Details ★☆ 3Pcs M35 Cobalt Step Drill Bit 3-12/4-12/4-20Mm Step Drill Cutter Pagoda Sh A5G7 CNC CNC, CBN grinding wheel. 118 ° X Bit Design, you can drill from any angle, no slipping. New groove design, great chip removal, small resistance, geat heat dissipation.Higher accuracy sharper achieve drilling burr.Plated cobalt coating, a substantial increase in the wear resistance and oxidation resistance.1/4 Inch hex shank: Ensure that the tool concentricity. perfect for cutting through metal, wood and plastic quickly and easily. Material: Cobalt Steel Alloys Color:Picture color Shank: 1/4 Inch Hex Shank Size: Model Step Height Steps Size 3-12mm 5mm 9 Steps 3,4,5,6,7,8,9,10,12 mm 4-12mm 8mm 5 Steps 4,6,8,10,12 mm 4-20mm 5mm 9 Steps 4,6,8,10,12,14,16,18,20 mm Package Contents: 3 x Step Drill Bits
