The 220 two star double-ended pin vise features one square end chuck (0 - .025" opening) and one round end chuck ( .035" to .115" opening). The overall length is 4.25". Product Categories: Small Hand Tools - Pin Vises Body Width x Body Height: 0.285" (7.13mm) x 0.316" (7.9mm) Tip Angle: Straight OAL: 4.5" (112.5mm) Weight: 1.2 Ounces Max per Carton: 1 Country of Origin: France