Silverline Extra Long Flat Wood Drill Bits (6-25mm size options)Features:- Fully hardened high carbon steel bit- Precision ground tri-point bit for a clean cut and reduced splintering- Additional length for greater accessibility & drilling depth- Hex shank for quick change- For drilling softwood, medium hardwood, particle board, plasterboard, plastics and fibreglass- For use with drills, drivers and hand braces.About Silverline Tools:Silverline are leading industry experts with many years history in manufacturing and supplying more than 5,000 quality hand and power tools throughout the UK and Europe. Silverline are so confident in their products that they offer a Lifetime Guarantee on all their Hand Tools, and 3 Years on Power Tools - must register your purchase online at https://www.silverlinetools.com/en-GB/Support/Guarantee within 30 days of purchase.