Jacobs Chucks and Keys are recognized by professionals and serious DIYers the world over as the number one brand for superior bit holding, durability and reliability. Positive locking mechanism prevents loosening in hammer and other high vibration applications
The Jacobs Multi-Craft Drill Chuck is mounted as original equipment on more drills than any other chuck by both domestic and import drill manufactures.
The Jacobs 1/2 inch Multi-craft chuck as original equipment on more drills than any other chuck. Features through-hardened jaws and industrial-grade design. Ideal for cordless reversible or non-reversible power drills.