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MH502A Pneumatic Sinker Drill

The MH502A Pneumatic Sinker Drill is the first choice for multiple types of drilling operations. The MH502A has the "largest-in-class" piston diameter and a superior integral oiler lubrication system. The MH502A has very low parts wear/consumption.

The MH502A Sinker Drill also has low air consumption thereby reducing the overall running costs. The combined blower & throttle lever and T-handle increases operator comfort.

This Pneumatic Rock Drilling machine with its robust construction, high quality and streamlined design allows high penetration rates over a long period with minimum maintenance costs and downtime.



  • Water flushing.
  • Chuck sizes – 22 mm X 108 mm (7/8 in X 4¼ in) & 25 mm X 108 mm(1 in X 4¼ in)


Technical Specifications:

Weight :24.5 kg
Length :584 mm
Stroke Length :51 mm
Air Consumption :48 l/s
Working Pressure :6 bar
Penetration Rate :230 mm/min
Piston Diameter:67 mm
Max Drilling Diameter:50 mm
Max Drilling Depth:3000 mm
Impact Rate :2220 BPM
Revolutions :215 RPM


Ordering Part No.

Part No.Chuck Size
5111 116 00022 x 108 mm (7/8 in x 4¼ in)
5111 116 000 5125 x 108 mm (1 in x 4¼ in)


Key Features

  • Integral oiler provides continuous & efficient lubrication
  • Graduated ratchet throttle control ensures accuracy in collaring holes
  • Tough latch retainer provides extra support to collar and reduces wear
  • T-handle for increased comfort
  • Blower lever for deep hole cleaning
  • High speed drilling
  • Low maintenance

Rock Drill MH502A

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