Extension Drill Rods

Extension drill rod transmits power from rock drill piston to rock, one side of the rod is connected to coupling or shank adapter, while the other side is connected with threaded drill rod.

Extension Drill Rods Parameters

• Thread size: R32, R38, T38, T45, T51.
• Rod size: Round 32, Round 39, Round 46, Round 52.
• Length: 600mm to 6059mm.
• Slot for wrench: with or without

Extension Drill RExtExtension Drill Rods Features

• Carburizing process is applied to promote surface hardness, thus grant better wearing quality and lifespan for the drill rods;
• 23CrNi3Mo, which is in same league as Sandvik Sandbar 64, is applied as drill rod material.
• Cost-effective, good performance with reasonable price.
• Complete types of drill rod for various drilling scenarios.

Extension Drill Rods Applications

Drilling duties in tunneling, construction, mining, quarrying, etc.