Capacity: 1/8â â 3/4"
3 â 19 mm Ball Bearing construction maximizes gripping force and drilling accuracy.
Center ground jaws provide absolute straightness and alignment.
One piece sleeve design eliminates cracks between driving teeth.
Sleeve teeth, nose piece and keyholes are through hardened, providing outstanding wear resistance.
1/8-3/4 18 N 4JT JACOBS BALL BEARING CHUCK
Type: Extra Heavy-Duty Tapered Mounted Chuck
Maximum Capacity (Inch): 3/4
Minimum Capacity (Inch): 1/8
Key Size: K4
Mount: 4JT
Style: Ball Bearing
Key Replacement Jacob's Part Number: K4