JET 701357 - 12mm Flex Head Ratchet Combination Wrench Plumbing Tools "PSA" type pad which is

"PSA" type pad which is balance weighted to reduce vibration Adjustable speed regulator Equipped for use with a central dust collection system for work place safety Standard accessories: 6-Inch PSA 6 Hole sanding Pad 905317

It is a heel jaw with pin assembly

and is cushioned for increased torque and comfort

Countersink

used for smoothing surfaces and rapidly removing sharp edges and burs on iron and steel flatwork

JET 701357 - 12mm Flex Head Ratchet Combination Wrench Plumbing Tools "PSA" type pad which isExclusive torque drive non slip open ends , 72 tooth ratchet mechanism exceeds the ansi torque ratings for a fixed wrench by more than 30 Percent , Superior grade 6140 chrome vanadium steel , Fully polished surface resists corrosion , Sets complete with plastic carrying rack