SHOCKWAVE IMPACT DUTY steel (Chrome-Molybdenum) is high quality alloy steel which provides ultimate strength and durability. Stamped and ink filled diameter markings and laser etched part number for wear resistance. Ball detent design for superior impact socket retention. Dual hole design and groove for security accessories. Impact socket adaptor set-4pc SHOCKWAVE IMPACT DUTY steel (Chrome-Molybdenum) is high quality alloy steel which provides ultimate strength and durability. Dual hole design and groove for security accessories. Ball detent design for superior impact socket retention. Stamped and ink filled diameter markings and laser etched part number for wear resistance.
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