The MILWAUKEE SHOCKWAVE 6" Impact Duty Magnetic Bit Holder is designed to be highly durable and have a long lifespan. It is made from a special Custom Alloy76 steel that has been heat treated to control its hardness. The magnetic bit holder features a powerful magnet that ensures a secure grip and strong engagement with the bit. It also has a C-ring to retain the insert bit. With its 2-Piece construction, this drill bit holder is built to withstand tough conditions on the jobsite. It is compatible with Milwaukee SHOCKWAVE Impact Duty Insert Bits. The bit holder's strong magnetic tip securely holds fasteners to the drive guide, while the C-ring keeps the insert bit in place. The Custom Alloy76 Steel used in its construction enhances its resistance to wear and shock. This bit holder is engineered to be extremely durable and has a lifespan that is up to 30 times longer than other options. It includes one SHOCKWAVE 6" IMPACT MAGNETIC BIT HOLDER and is part of the Milwaukee Tools range.