Electronic Supply by Industrial Electronics in Milwaukee Wisconsin : Potter Brumfield, Radio Shack Stores in Milwaukee: 344 Grooved Nylon Jaws 344 Grooved Nylon Jaws ================================================================================ Staff on 31/10/2009 03:05:00 For 303 and 304 Vise Heads. Excellent electrical insulation with a grooved surface. Perfect for small tubes, rods or circuit boards! For 303 and 304 Vise Heads. Excellent electrical insulation with a grooved surface. * Grooved, type 6/6 Nylon Jaws for jobs requiring electrical insulation and gentle holding power * Continuous heat tolerance to 200°F (93°C), intermittent heat to 300°F (149°C)