These Titanium Nitride Coated Drill Bits Size 1-10mm 19PC from C.K Tools are Ideal for contractors and DIY enthusiasts requiring superior long lasting Drill Bits. These Drill Bits are coated in Titanium nitride for extra longevity and wear protection. This Set of Drill bits comes in its own storage kit for a quick and easy selection. These Drill bits would be ideal and compadible with most drills and toolboxes. Main Features: 19pc set Drill bit from 1mm to 10mm Titanium Nitride Coated Includes Storage case Technical Specification: Sizes: 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 mm Materials: High speed steel / titanium nitride Bit Type: Twist/Jobber Case Included?: Yes 1 Year Guarantee Included