... Certificate TPB40 rock breakerspecifications,TPB-30 & TPB-40 Breakers are lightweight rugged tools designed for light to medium construction jobs,such as ... and TPB-90 available in 1-1/8” & 1-1/4” shanks.name,pneumatic hammer, paving breaker, pneumatic pick, jack hammer, pneumatic breaker, concrete breaker, air breaker, breaker, pneumatic jack hammer, pneumatic ...