Pipe saw recip saw series bosch gsa bosch professional power supply electric saw power 1 100 watt features speed preselection sgeblatthub hublnge 28 mm workable materials wood cutting saws metal cutting saws weight 7 kg werkzeugloser sgeblattwechsel led light rotations per minute 2 700 rpm idle rpms 2 700 rpm max cutting depth at 90 230 mm max cutting depth wood 230 mm max schnitttiefe in stahl 20 mm max schnittleistung rohr 20 mm