Step Drill Bit 4-12/20-32Mm Nirtird Coated Wood Metal Drilling Tool Metal Hole Cutter Step Cone Drill Bit

Type: Spiral Step Drill Bit Coated:Nitride Coated Handle:Triangle Scop: Thin iron plate aluminum insulation panels PVC panels 0.4mm thickness within the timber. 4-12mm: 4-6-8-10-12mm 5 steps 4-20mm: 4-6-8-10-12-14-16-18-20mm 9 steps 4-32mm: 4-6-8-10-12-14-16-18-20-22-24-26-28-30-32mm 15 steps Colour:black Material:high speed steel Package Contents: 1 x 4-12mm drill head 1 x 4-20m drill head 1 x 4-32mmm drill head Only the above package content other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.