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The MILWAUKEE 42-06-2559 is a detent pin anvil assembly designed as a replacement part for compatible Milwaukee 1/2 inch drive impact wrenches. The detent pin mechanism is what retains the socket on the anvil during operation, keeping it securely seated under the high-torque, high-vibration conditions typical of impact tool use. This assembly includes the anvil and detent pin components packaged together as a matched set. It is installed by Milwaukee-authorized service technicians or experienced power tool repair professionals when the original anvil or retention system shows wear, damage, or failure.
This assembly is suited for repair and service of Milwaukee 1/2 inch drive impact wrenches that use the detent pin style of socket retention. It is a common wear item in high-cycle professional environments such as automotive service, heavy equipment maintenance, and industrial assembly operations where impact wrenches see continuous daily use. Replacing a worn anvil assembly restores proper socket retention and prevents socket ejection during operation.
Designed as an OEM-style replacement anvil assembly for compatible Milwaukee 1/2 inch drive impact wrenches that use the detent pin socket retention system. Verify compatibility with the specific tool model before ordering.
Installation should be performed by a qualified power tool service technician. Disconnect and remove the battery or unplug the tool from any power source before beginning disassembly. Use manufacturer-approved service documentation and appropriate hand tools for anvil assembly replacement. Improper reassembly of internal impact mechanism components can result in socket ejection or tool damage during operation.
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