Our P523 punching pliers - effortless punching in concrete boxes and crates. With the P523 punching pliers, effortless punching in concrete boxes and crates can be done with 50% less effort. The opening cutter is suitable for punch sizes for the entry openings of M20 pipes. The punch inserts on the hand punching pliers can be exchanged as required, while the punch plates can be removed through the punch opening each time they are used. For quick and easy punching of concrete boxes - the punching pliers from Primo. The advantages of our hand punch at a glance: 50% less effort, interchangeable punch inserts, punch sizes for M20 entry openings, effortless punching in concrete boxes and crates.