The 21Mm 1/2Drive Deep Socket Crv 12 Point Is A Durable, High-Quality Socket Designed For Use With A 1/2Drive Ratchet Or Wrench. Made From Chrome Vanadium (Crv) Steel, This Socket Offers Exceptional Strength, Resistance To Wear, And Long-Lasting Performance. The 12-Point Design Allows For Easier Engagement With Fasteners, Providing Better Grip And Reducing The Risk Of Slipping Or Rounding Off Bolts. Its Deep Well Design Is Perfect For Reaching Recessed Or Long Bolts, Making It Ideal For Automotive, Mechanical, And General Maintenance Tasks.