Stanley fatmax hacksaw stanley 1 20 531 the stanley fatmax hacksaw with a durable die cast aluminium body that is both lightweight and strong it has a thumb grip for a more accurate cut and a bi material soft grip for comfort the saw has an adjustable thumb dial tension mechanism inside its handle and this spring loaded tension device gives up to 150kg blade tension for ease of use li supplied with a bi metal blade 24 tpi li cutting capacity 120mm 5in li tension 150kg stanley 1 2