Quqiuxian 13pcs 1.5-6.5mm Titanium Coated HSS Drill Bit Set

Description This set of 13 pieces of durable titanium nitride coated drill lasts six times longer than standard drills and it facilitates faster penetration with less effort. Suitable for steel wood plastic etc. Features - Color: As shown in pictures. - Material: Hard HSS with titanium nitride coated. - Size: 1.5mm / 2.0mm / 2.5mm / 3.0mm / 3.5mm / 4.0mm / 4.5mm / 5.0mm / 5.5mm / 6.0mm / 6.5mm. - Titanium nitride coating facilitates faster penetration with less effort. - The 1/4 hex is designed for cordless screwdriver and allows you to change bits quickly. - Suitable for steel wood plastic etc. - It can be used with cordless screwdriver.