
5/16 Inch (in) Short Arm Alloy Steel Hex Key supports close-quarter internal-hex fastening where a longer handle may not have room to rotate. Keeping the exact width separate from boxed sets can help purchasing match shop-floor replacement needs without overbuying.
The compact driver format is useful for service access around brackets, collars, housings, and adjustment points. Cold Headers can support production quantities and non-catalog short arm key requests when the requirement is specific. This separate SKU helps buyers source an individual short arm key instead of purchasing a full set for one missing width.
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a short arm hex key quote.