The Chicago Pneumatic CP 4136 is a 19 lb production chipping hammer that holds its 1,900 BPM blow rate in both the 3 in. and 4 in. stroke versions, thanks to a 1-1/8 in. bore that moves more air than the lighter models in the Chicago Pneumatic chipping hammer range. Its signature feature is a thread-on ball-type retainer that keeps the steel captive for fast changes on heavy chipping, scaling and concrete demolition.

The 4-bolt D-handle and 7/8-24 air inlet are shared with CPs other heavy hammers, so hoses and whips swap straight over. It runs .580 in. hex or .680 in. round steels chisels for chipping hammers in both shanks are on the shelf in Denver and if you are deciding between a chipper and a bigger breaker, the article on choosing a concrete breaking tool draws that line. Browse all chipping hammers for lighter alternatives.

• 3 or 4 in. stroke, both rated 1,900 BPM for a consistent production pace
• 1-1/8 in. bore; 3132 CFM at 90 PSI through a 7/8-24 air inlet
• Thread-on ball-type retainer keeps steel captive for fast chisel changes
• Chuck options: .580 in. hex or .680 in. round
• 19 lb tool weight, 17-1/2 in. overall length, 4-bolt D-handle frame
• Applications: heavy chipping, scaling and concrete demolition
• Stocked by Crowder Supply in Denver; ships free by UPS Ground

CP 4136 Chipping Hammer FAQ

What chisels does the CP 4136 take?
It runs .580 in. hex or .680 in. round shank steels, and the thread-on ball-type retainer keeps the chisel captive for fast changes.

How much air does it use?
3132 CFM at 90 PSI through a 7/8-24 inlet, so it runs on standard contractor whip hose with an in-line lubricator keeping it oiled in shop or field use.

Is a 19 lb hammer the right size for my work?
The CP 4136 is the production choice for heavy chipping, scaling, weld cleanup and refractory work medium-duty jobs where a heavier breaker causes operator fatigue. The chipping hammer buyer’s guide maps hammer weight and stroke to the job.

3 in. or 4 in. stroke does the blow rate change?
No both stroke versions are rated 1,900 BPM at essentially the same air draw, so pick the stroke length; weight and chuck options are identical.