Description: High speed steel polished durable step drill bit metric 3-12mm 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: 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm. Shank Size: 1/4" Length: 7.5cm / 3inch Color: Golden, show as picture Package Includes: 1 Piece 3-12mm Step Drill Bit
