Jacobs Chuck Superchuck Ball Bearing Chuck, K4 Key, 1/8 in to 3/4 in Capacity, 4JT Short Mount

Ball bearing construction maximizes gripping force and drilling accuracy. Jaws center-ground for straightness and alignment. One-piece sleeve eliminates crack between driving teeth often found in other designs. Through-hardened sleeve teeth plus hardened nose and keyholes provide outstanding wear resistance. Fluted sleeve standard

Attributes:

Bit/Blade Mounting Size [Max] = 3/4 in, Bit/Blade Mounting Size [Min] = 1/8 in, Capacity [Max] = 3/4 in (mild steel), Capacity [Min] = 1/8 in (mild steel), Chuck Size = 3/4 in, Finish = Fluted Sleeve, Housing Diam = 3 in, Key Size = K4, Mechanism = Ball Bearing, Mounting = 4JT Short, Overall Length [Max] = 5.12 in, Overall Length [Min] = 3.95 in, Type = High Precsion Drill Chuck, Used With = K4 Key, Wt. = 66 oz. (1 EACH = 1 EACH)