APT M137 Rock Drill is a midsize pneumatic drilling tool engineered for dry‑drilling applications in construction, utility and industrial settings. Featuring a 1″ × 4‑1/4″ chuck, a 2‑3/8″ bore, and a 2‑5/8″ stroke, the M137 produces approximately 2,300 blows per minute (BPM) — delivering the high‑impact energy required for penetrating hard‑faced rock, concrete or quarry material. Designed specifically for dry operation (no water flushing needed), this version gives professionals a reliable solution in environments where water supply is limited or unavailable. Its robust build, balanced weight and ergonomic design offer durability and performance in jobs such as rock anchor drilling, utility hole drilling and secondary blast‑hole preparation.
Type: Rock Drill | Chuck Size(in.): 1 x 4-1/4 | Bore (in.): 2-3/8 | Stroke (in.): 2-5/8 | BPM: 2300 | Air Consumption @ 90 PSI (CFM): 85-90 | Length (in.): 19-3/4 | Air Inlet NPT (in.): 1/2 Male | Application: Utility and maintenance drilling tasks
Features:
• 4 drilling speeds
• Replaceable piston stem bearing
• Available wet or dry
• Counterclockwise rotation Model 137 cont.
• Rubber handle grips
Tech Tip: To increase tool performance, extend tool life and lessen repair costs use it with a Filter-Regulator-Lubricator (Click Here To Shop FRLs)
Looking for more information about APT Rock Drill? Click here to view the Catalog.
For more information please call (800) 608-5210 or email info@intlairtool.com
- Type
- Rock Drill
- Chuck Size (in.)
- 1 x 4-1/4
- Bore (in.)
- 2-3/8
- Stroke (in.)
- 2-5/8
- Blows Per Minute (BPM)
- 2300
- Air Consumption @ 90 PSI (CFM)
- 85 - 90
- Length (in.)
- 19-3/4
- Air Inlet
- 1/2" Male NPT
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