Designed to drill especially rigid materials such as granite, concrete. Hardmetal plate is specially hardened, therefore it perfectly adapted to drill even the most solid materials. Hardmetal is soldered in vacuum conditions at 1100 °C temperature, using bronze soldering paste ensures maximum adhesion of hardmetal and drill rod. Patented coil design to remove dust faster and that drill would not jam. Especially rigid chrome - vanadium steel consists of increased amount of carbon, more solid hardening, more rigid drill. Durable plastic package and trade stands for convenient marketing.
Manufacturer: IRWIN | Diameter, mm: 4 | Working Length, mm: 45 | Overall length, mm: 80 | Shank / chuck type: Straight
