TelecomTools | Optical Fibre Equipment › Draper Metric Titanium Nitride Coated Hss Drill Bit Set (15 Piece) Image 1 of 1 Draper Metric Titanium Nitride Coated Hss Drill Bit Set (15 Piece) £14.00 High speed steel drills coated with titanium nitride for longer life. Display packed in soft grip plastic case. Add To Cart Added! High speed steel drills coated with titanium nitride for longer life. Display packed in soft grip plastic case. You Might Also Like Quick View Draper Measuring Wheel £60.50 Quick View Attachment Rod 3A £10.50 Quick View Jonard RTC-3652 360° Rotary Duct & Tube Cutter, 36 - 52 mm £246.00 Quick View Sash Line No.2 £32.00 Quick View Guide Ball for Cobras from £4.10