Mata Bor Pagoda Multi Step Cone Tangga Payung Titanium 3-12mm Hex Titanium Step Cone Drill Bit Hole Cutter 3-12MM HSS This is HSS High Speed Steel Step Drill / Pagoda Drill Bit, which is made from high quality HSS steel, and with the Titanium coated to reduce friction and heat. It is very suitable for using to cut holes in a variety of materials including steel, brass, wood, plastic, etc. Features: 1, The ladder of its unique structure, a bit can open a variety of specifications of aperture. 2, Do not need to use center punch, compared with the ordinary twist drill is not easy to be broken. 3, Deburring, chamfering, elliptic hole enlargement, twist drill, the function of them was unable, but it is possible. 4, The use of tools: drill, bench drillWork while water cooling, can effectively extend the service life of drill bit, recommend drilling rate of 250-250 RPM. Specification: Shank hex: 1/4 inch Material: High speed steel 4241 Finish: Titanium The Cutters Come in The Sizes: 3-12mm (3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm). Paket berisi: 1x mata bor pagoda 3-12mm