Step Drill Bit Saw Drill Bit Set Titanium 4-12 4-20 4-32mm Wood Metal Hole Cutter Cone Drills Drilling Tool 3 6 8mm Twist Drill - 1420 Cone Drill Bit - Flute design for faster and smoother cutting , coating for cooler Product Application: suitable for drilling and reaming operations of thinner iron plates, aluminum plates, copper plates, plastic plates and other materials Quick change 1/4 hex shank Metal Cutting Step Drill Bits 3/5Pcs High Speed Steel Titanium Coated Multiple Hole 50 Sizes Step Drill Bit Tools Set HSS Drill Bits High-speed steel for a long service life Holes are automatically deburred when drilling US PRO 4MM TO 22MM STEP DRILL BIT HSS-G STEEL CONE HOLE PVC METAL CUTTER SPIRAL. Brand new. £4.79. Free international postage With the two design tips for flutes, penetration can be done faster without chipping 1/4 hex shank Sizes: (., ) 3-12 mm: 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 mm / 0., 12, 0., 16, 0., 20, 0., 24, 0., 28, 0., 31, 0., 35, 0., 39, 0., 43, 0., 47., 4-12 mm: 4, 6, 8, 10, 12 mm / 0., 16, 0., 24, 0., 31, 0., 39, 0., 47., 4-20 mm: 4, 6, 8, 10, 12, 14, 16, 18, 20 mm / 0., 16, 0., 24, 0., 31, 0., 39, 0., 47, 0., 55, 0., 63, 0., 71, 0., 79., 4241 high-speed steel HSS (suitable for use in workpieces with a hardness of 25 degrees such as carbon steel, plate, insulation plate and wooden plate). Note: Due to the light and screen difference, the colour of the item in the photos may be slightly different. Packing list: 6 x step drill bits with bag.
