APT M155 Rock Drill is an industrial‑class pneumatic drilling tool crafted for demanding dry‑drilling operations in rock, quarrying, concrete and construction environments. Equipped with a 7/8″ × 3‑1/4″ chuck, a substantial 2‑5/8″ bore, and a 3″ stroke, it delivers approximately 2,100 blows per minute, providing significant impact energy and efficient penetration in hard‑faced rock or reinforced concrete. Built for rugged job sites and severe duty use, the M155 features heavy‑duty internal components, a balanced ergonomic design, and a durable housing to stand up to challenging applications where water flushing is impracticable or undesirable. With its dry‑drilling configuration, this tool is optimized for environments where dust control, air supply and mobility are key factors—such as quarry secondary blast holes, anchor bolt installations in rock, and service drilling in remote or confined settings.
Type: Rock Drill | Chuck (in.): 7/8 x 3-1/4 | Bore (in.): 2-5/8 | Stroke (in.): 3 | BPM: 2100 | Air Consumption @ 90 PSI (CFM): 110-120 | Length (in.): 22-3/4 | Air Inlet NPT (in.): 3/4 Male | Application: Utility and maintenance drilling in construction sites
Features:
• 3 drilling speeds
• Replaceable piston stem bearing
• Built-in automatic oiler
• Available wet or dry
• Counterclockwise rotation
• 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
warning WARNING: This or other products sold on this website may expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
For more information go to www.P65Warnings.ca.gov
