Down-the-hole hammer GP 300 - MD3.5 SPIBO

The GP300 hammer offers a power increase of up to 25% compared to Dominator 350 (predecessor). This exceptional hammer is simple, robust and has a high penetration power. The GP300 has an integrated non-return valve with an adjustable vent system to adjust the amount of air, this hammer has a liner and a solid piston design. This hammer has few internal parts, which makes it easy to maintain on site with minimal tooling required

• Size: 95mm -105mm (3 1/2 - 4 1/8”)
• Shaft: MD 3.5
• Air pressure: 100 - 362 psi (7 - 25 bar)
• Airflow: 120 - 630 cfm (3398 - 17840 l/min)
• Thread connection: 2 3/8" API Reg Pin Up
• Outer diameter: 85 mm (3.35")
• Wrench flat: 64 mm (2.520")
• Max. weight on bit: 300 kg
• Min. bit diameter: 95 mm
• Usable length: 885 mm (34.84")
• Weight: 24kg