Model: 366 Wide Opening HeadHold larger objects with this general purpose Vise Head!Jaw pads gently, yet firmly, hold a wide variety of objects including circuit boards, coils and tuners. Jaws open a generous 6". Jaws pads are 1.875"(47.6mm) high x 1.5" (38.1mm) wide. Opens to 6" (152.4mm) with jaw pads and 6.25" (158.8mm) without jaw pads Ribbed, neoprene jaw pads provide a sure grip and can hold and insulate PC boards and other larger objects; reverse the pads and the wide "V" holds delicate cylindrical objects Remove jaw pads from steel jaws when working with high heat Black oxide coating reduces glare and promotes eye comfort Head Length: 11" (279.4mm) Compatible with all 300 series Bases Height (shaft to top of jaw pads): 5.125" (130.2mm) Weight: 1.6 lbs (0.7kg)