Product Name: Grinding machine chuck
Material: carbon steel
Dimensions: 27 x 10 mm / 1.06 x 0.39 inches
Aperture: 1/8" (3 mm), 1/4" (6mm)
Suitable for: die grinders, planers and other chucks with chucks
Package includes: 2PCS 1/8 inch chucks, 2PCS 1/4" chucks