APT M137 Rock Drill | 7/8" x 4-1/4" Chuck Size | 2-3/8" Bore | 2-5/8" Stroke | 2,300 BPM | Dry Drilling

APT M137 Rock Drill is a premium midsize pneumatic drilling tool engineered specifically for dry‑drilling in harsh job‑site and quarry conditions. With its 7/8″ ×  4‑1/4″ chuck configuration, a substantial 2‑3/8″ bore, and a 2‑5/8″ stroke, it generates approximately 2,300 blows per minute (BPM), delivering high‑velocity percussive action ideal for drilling hard‑faced rock, concrete, and utility anchor holes. Designed with job‑site durability in mind, this tool combines a rugged alloy steel cylinder, heavy duty internal components, and balanced ergonomics to ensure consistent output and operator control. The dry‑drilling model eliminates the need for water irrigation or flushing systems, making it optimal for operations where water supply is constrained or where wet systems would hinder logistics.

Type: Rock Drill | Chuck Size(in.): 7/8 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