ITEM NAME:5PCS 1/4'' Drill Bit Set Cutting Tools For Woodworking Wood Carving Tool BX Specifications: 100% Brand new and High quality. Made from high quality HSS steel. With nylon storage bag. New HSS Steel Large Step Cone Drill Titanium Bit Set Hole Cutter. Heat treated and highly polished. With the Titanium coated to reduce friction and heat. Perfect for home DIY and general building / engineering use. Ideal for using to cut holes in a variety of materials including steel, brass, wood, plastic,copper, fiberglass and PVC etc. 3 sided shanks design in order to prevent slippage when in chuck. Two flute design provides faster, smoother and cleaner cuts. Each step is clearly labeled with the depth diameter in steps Specifications: Material:High carbon steel Finish: Titanium Shank: 6.35mm(1/4")round shank Size: 10mm, 25mm, 29mm,33mm Package including: One Set (5PCS Drill bits).One Set (5PCS Drill bits). New HSS Steel Large Step Cone Drill Titanium Bit Set Hole Cutter. Two flute design provides faster, smoother and cleaner cuts. Shank: 6.35mm(1/4")round shank. Ideal for using to cut holes in a variety of materials including steel, brass, wood, plastic,copper, fiberglass and PVC etc.