Securely holds . 401" shank chisels. Fits most popular air hammers. Safe to use, fast to change chisels. Just pull back collar to install or remove chisels. Retainer becomes part of tool eliminating need for other retainers Securely holds .401" shank chisels. Fits most popular air hammers. Safe to use, fast to change chisels. Just pull back collar to install or remove chisels. Retainer becomes part of tool eliminating need for other retainers.Features Fits most popular air hammers Country of Origin:United States Package weight:10.6 lb Model Number:94400 Specifications Manufacturer : Tool Aid Part Number : 94400 Item Weight : 10.6 ounces Product Dimensions : 6.5 x 4.25 x 0.5 inches Item model number : 94400 Is Discontinued By Manufacturer : No Item Package Quantity : 1 Included Components : CHISEL RETAINER Batteries Included? : No Batteries Required? : No Warranty Description : Manufacturer Warranty ASIN : B0002SRL4I Customer Reviews : 2.2 out of 5 stars 3 ratings 2.2 out of 5 stars Best Sellers Rank : #1,018,907 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #1,056 in Wood Chisels Date First Available : August 11, 2004