Widely used in a explosive and flammable place; fastening or removing bigger metal pipe or Cylindrical parts. It is the most conventional tool in pipe intallation and repairing work.

Number	L mm	K mim	Be-Cu g	Al-Cu g
130-1002 130-1004 130-1006 130-1008 130-1010 130-1012 130-1014 130-1016	200 250 300 350 450 600 900 1200	25 30 40 50 60 75 125 150	420 615 880 1180 1590 3395 6600 12560	380 560 801 1080 1450 3105 5850 11350