Description: High speed steel polished durable step drill bit metric 4-32mm cone cutter. Titanium coated to reduce friction and heat. With a cone drill it is easy for it to dig in and make a round hole. Double flute design provides faster, smoother and cleaner cuts. Suit for cutting holes in a variety of materials including thin metals, steel aluminium, copper, wood, plastic, fiberglass, brass and PVC etc.. Automatically deburrs for making a clean hole as you drill. Specification: Material: High-speed Steel Drill size 15 steps: 4mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm,22mm,24mm,26mm,28mm,30mm,32mm. Shank Size: 6.35mm / 1/4inch Length: 10cm / 4inch Color: Golden, as picture show Package Includes: 1 Piece 4-32mm Step Cone Drill Bit
