ITEM NAME:1.5-6.5Mm Tungsten Carbide Twist Titanium Drill Bit Hss 1/4 Hex Shank ME Feature: Hss Drill Bit Set For Wood, Plastic And Aluminum. Titanium nitride coating facilitates faster penetration with less effort. The 1/4 "hex shank is specially designed for cordless screwdrivers, enabling you to quickly change drill bits. Titanium coated HSS drill set with standard 1/4 "hex shank that will fit cordless screwdrivers, drills etc or use in standard drill chuck Longer life and durability It can be used with cordless screwdrivers 1/4 "hex shanks for fast drill bit changes Ideal For DIY, Home And General Building/Engineering Using. Specification: Material: HSS / High Speed Steel Surface Treatment: Titanium Coated Size: 1.5mm / 0.06 " 2.0mm / 0.08" 2.5mm / 0.10 " 3.0mm / 0.12" 3.2mm / 0.13 " 3.5mm / 0.14" 4.0mm / 0.16 " 4.5mm 0.18" 4.8mm / 0.19 " 5.0mm / 0.20" 5.5mm / 0.22 " 6.0mm / 0.24" 6.5mm / 0.26 " Note: 1.Please allow 1-3mm error due to manual measurement. please make sure you do not mind before you.Titanium coated HSS drill set with standard 1/4 "hex shank that will fit cordless screwdrivers, drills etc or use in standard drill chuck. Hss Drill Bit Set For Wood, Plastic And Aluminum. Material: HSS / High Speed Steel.