7/16 Short Arm Alloy Steel Hex Key provides a short arm L-key format for assembly benches, maintenance kits, and equipment service. The ASME B18.3 width band is 0.4355-0.4375 in.; the key is held just under nominal so it enters an in-tolerance socket and bears on the flats.
Instrument and electronics work on the small end of the range depends on compact keys that fit small socket products. Many buyers stock the Short Arm key beside its Long Arm twin so the same width is available in both geometries.
Cold Headers keeps this driver family tied to the broader socket-fastener catalog rather than treating it as a commodity tool. Review the 7/16 in. width, Short Arm format, short-leg length, and arm length before ordering. Hex Socket Pressure Plugs are a related catalog section for buyers sourcing socket-drive closure hardware.
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
