The Draper 99 Piece HSS TiN Drill Bit Set delivers a comprehensive range of titanium nitride coated drill bits for professional tradespeople and serious DIY enthusiasts. This extensive set provides multiple quantities of the most commonly used sizes, ensuring you always have sharp bits available when drilling through steel, non-ferrous metals, wood and hard plastic. Manufactured from high speed steel with a titanium nitride coating, these drill bits offer enhanced strength and extended service life compared to standard HSS bits. The fully ground construction features a 135° split point designed for precise centring, preventing drill wander when starting holes on uneven or curved surfaces. Each bit is compatible with standard 10mm and 13mm chucks found on most drill drivers and pillar drills. For optimal performance and longevity, particularly when drilling steel and other metals, these Draper Titanium Series bits work best when used with an appropriate cooling agent. The set arrives in a practical plastic carry case for organised storage and easy transportation between job sites. Features and Benefits: • Titanium nitride coating for enhanced strength and longer life • Fully ground with a 135° split point for precise centring • Best used in conjunction with a cooling agent • Suitable for use with steel, non-ferrous metals, wood and hard plastic • Compatible with a standard 10/13mm chuck • Sizes 1.5-10.0mm • Supplied inside a plastic case Specifications: Drill bit type: HSS Drill tip angle: 135° Flute: Single Connection: Round shank Construction: Fully ground Contents: 99 x HSS Titanium Nitride Coated Drill Bits - 1.5 (x16), 2.0 (x16), 2.5 (x15), 3.0 (x10), 3.2 (x10), 3.5 (x8), 4.0 (x8), 4.5 (x3), 5.0 (x3), 5.5 (x2), 6.0 (x2), 6.5 (x2), 8.0 (x2), 10.0mm (x2)