CDI Torque Products 2502MRPH 3/8 in Micrometer Torque Wrench 30-250 in-lb

Precision Inch-Pound Wrench

The CDI 2502MRPH is a 3/8 inch drive micrometer torque wrench built for technicians who need repeatable inch-pound accuracy. Its alloy steel construction and ratcheting mechanism serve automotive, aerospace and industrial assembly where fastener preload must be documented. The tool covers a 30 to 250 in-lb primary scale with 1 in-lb increments and a matching 4 to 27.70 N-m range at 0.12 N-m steps for metric specifications.

Build Integration

The 3/8 inch square drive accepts standard sockets and extensions already in most service kits, so no proprietary accessories are required. Clockwise and counterclockwise operation lets the wrench tighten and verify left-hand threads without swapping tools. A tether point is integrated into the handle, allowing safety-cord attachment for elevated work or foreign-object-damage prevention programmes. Adjustable micrometer sleeve locks the chosen setting against vibration during repetitive cycles.

Capacity and Headroom

The 30 in-lb floor handles small fasteners such as sensor mounts, electrical terminals and light cover bolts without bottoming out the scale. At the 250 in-lb ceiling the wrench still reads cleanly for larger bracket and housing bolts common in engine ancillaries and transmission cases. Beyond 250 in-lb or below 30 in-lb the micrometer resolution is exceeded, so a different range tool is required for heavy structural bolts or delicate instrument work.