Socket Quality Matters in Precision Torque
The socket is the last link between the torque tool and the fastener. A low-quality socket with wide dimensional tolerances can cause torque loss, damage to fastener heads, and inconsistent tightening results. Ko-ken manufactures in Japan using high-grade chrome-vanadium and chrome-molybdenum steel with tolerances that guarantee the performance of the entire system — from the tool to the joint.
Key Features
- Precision sockets 1/4", 3/8", 1/2": designed for electric screwdrivers and manual torque wrenches in controlled assembly
- Impact sockets 3/8", 1/2", 3/4": for pneumatic guns and high-torque impact tools in maintenance and heavy use
- Deep and shallow drives: for different fastener lengths and access requirements in tight spaces
- Square extensions: access to hard-to-reach areas, lengths from 50 to 400 mm for complete coverage
- Square adapters: conversion between 1/4", 3/8", 1/2" and 3/4" to maximize accessory compatibility
- Bit holders and bit sockets: for Phillips, Torx, hex, Pozidriv and other fastener heads
- Ratchet handles: for manual tightening in confined spaces where a full-swing wrench cannot be used
Main Applications
Ko-ken sockets are used in automotive assembly lines, electromobility, precision manufacturing, industrial maintenance, and any operation where torque accuracy and repeatability are critical. Compatible with all torque tools in the TMG catalog — pneumatic, electric, and battery-powered.
Available Brands
Ko-ken (Japan) — the complete range of impact and precision sockets, extensions, adapters, and bit holders is available through TMG in Mexico. Ko-ken is specified directly by several automotive OEMs in their critical assembly processes due to its dimensional consistency and durability.