Designed for use with Milwaukee Shockwave magnetic bit tip holders. Proprietary steel and heat treat process for maximum strength and durability. Heavy-duty construction for fastening capabilities in all impacts. 1-1/2" long. Set includes 1/4", 1/2" and 3/8" insert socket adapters. No. 48-32-5023: Pieces In Set: 3 pcs, Pkg Qty: 3, Package Type: Card