Pipe saw recip saw series bosch psa power supply electric saw power 900 watt features soft handle speed regulation sgeblatthub hublnge 28 mm workable materials wood cutting saws metal cutting saws weight 35 kg werkzeugloser sgeblattwechsel rotations per minute 2 700 rpm idle rpms 2 700 rpm max cutting depth at 90 200 mm max cutting depth wood 200 mm max schnitttiefe in stahl 20 mm max schnittleistung rohr 150 mm length 500 cm width 104