Brand Name: Jacobs
*Chuck Size: 1/4 in.
*Keyless: Yes
*Product Type: Drill Chuck
*Shank Diameter: 1/4 in.
*Shank Type: 3-Flat Shank
*Number in Package: 1 pc.
*Minimum Capacity: 3/8 in.
*Usage: For hard and wear resistant gripping surfaces
*Maximum Capacity: 1/2 in.