SGT94100 Features: -This is the beat chisel retainer available. -Two piece safety device for air hammers. -Collar fits against stop on .401 chisel shanks for 100% contact.. -Heavy duty steel spring has remover lever. Generic Dimensions: -6.5" H x 2" W x 4.5" D, 0.35 lb. Dimensions: Overall Height - Top to Bottom: -6.5 Inches. Overall Width - Side to Side: -2 Inches. Overall Depth - Front to Back: -4.5 Inches. Overall Product Weight: -0.35 Pounds.