Features : - Drill perfect shallow or deep holes without center punch - No need for a pilot hole - Can be used for chamfering, deburring, and drilling elliptical holes - Unique stepped construction, drill different sizes with one bit - Titanium coated to reduce friction and run cooler - It is very suitable for using to cut holes in a variety of materials including steel, brass, wood, plastic, etc. - Made of high quality HSS, tough and durable - Ideal for DIY, home and general building/engineering using Specifications : - Material: HSS - Finish: Titanium - Shaft Type: Triangular Shank - Shank Size : 1/4? Hex Shank - Mm length 4-32 mm: (approx.) 10.2 cm / 4.02 " - Step : 15 Steps(4mm,6mm,8mm,10mm,12mm,14mm,16mm, 18mm,20mm,22mm,24mm,26mm,28mm,30mm,32mm) Package Includes : - 1x 4-32mm High Speed Steel (HSS) Step Drill