Integral Rod with shank H22X108mm (7/8"x4 1/4") with 7.2mm inner cooling hole

Intergral Rods  

with inner cooling hole 7.2mm 

Size: 23x430mm   

Material: High manganese steel Hexagonal 22mm 

               for superior durability and wear resistance in coal,ore, rock mining.

Shank： Hex 19mm, 22mm, and 25mm shanks with 108mm or 159mm length

Length：From 400mm to 4800mm to suit various drilling depths

High Drilling Efficiency: Reduces impact energy expenses and improves drilling speed for bore holes 28mm to 41mm