The dormer a510 hss tin adx jobber drill bit is a premium tool designed for high efficiency drilling. Coated with titanium nitride, this drill bit offers superior durability and heat resistance, extending its lifespan and ensuring consistent performance. Made from high speed steel, it delivers excellent cutting power and precision, making it ideal for a wide range of materials including steel, aluminium, and plastics. Featuring a 130deg split point, the dormer a510 ensures quick and accurate starts, minimising bit wandering and improving drilling efficiency. This design enhances cutting performance, reduces the amount of force required, and ensures cleaner, more precise holes. The adx geometry further optimises chip evacuation. For use on nc and cnc machines where high productivity and accurate holes are required. Recommended for hole depths up to 4 x diameter. Features benefits bull high speed steel increases hot hardness and improves tool life bull din 338 bull quick helix, right hand spiral bull 130deg point angle bull titanium nitride coating specifications bull diameter 7.4mm bull overall length 109mm bull quantity 1