Features: -Mode by HSS with heated treatment and Titamium Nitride Coating -Increase the hardness and make the bits last up to 4 times longer than ordinary drill bit -Single flute for maximum drilling control into sheet metal. -Used on electrical drill and drill press -Self-centring point – will not walk. Eliminates centre punching. -Flatted shank prevents the drill bit from slipping in the chuck. -Design to auto deburr the hole cut -Unique flute design ensures perfect round holes in sheet metal.Variable available: Hole Sizes from 4mm to 12mm / 20mm / 30mm / 40mmPrice for 1 piece**All Pictures shown are for illustration purpose only. Actual product may vary due to product enhancement.** Show More Show Less
