The MH505HB pneumatic jackhammer. Sinker drill is a footrest equipped version of the MH505L which is a time-tested and proven choice. This low-cost drill dominates the markets of India and Brazil due to its high return on investment and is designed for drilling through granite, hard-faced rock, quarry drilling, bench drilling, and drilling secondary holes for blasting. It has built-in air flushing which facilitates the removal of drill chipping to reduce the risk of drill jamming. It also comes with a water flushed option for dust suppression applications. The footrest increases operator comfort and enables faster drilling. This can drill holes up to depths of 6 meters. This drill also has a robust kick-latch retainer for fast and convenient tool change.

| Part No. | Chuck Size |
|---|---|
| 5111 109 000 51 | 22 x 108 mm (7/8 in x 4¼ in) |
| Weight : | 26 kg |
| Chuck Size : | 22 x 108 mm |
| Length : | 668 mm |
| Stroke Length : | 59 mm |
| Air Consumption : | 58 l/s |
| Penetration Rate : | 425 mm/min |
| Piston Diameter: | 65 mm |
| Max Drilling Diameter: | 40 mm |
| Max Drilling Depth: | 6000 mm |
| Impact Rate : | 2040 BPM |
| Revolutions : | 215 RPM |