0.035 Short Arm Alloy Steel Hex Key gives tool cribs a short arm driver for socket fasteners that need a correctly sized hex key. The ASME B18.3 width band is 0.0345-0.0350 in.; the key is held just under nominal so it enters an in-tolerance socket and bears on the flats.
Die and mold work can require dedicated driver sizes near tooling plates, clamps, and adjustment hardware. Use the Short Arm series when clearance is limited, and compare the Long Arm twin when added reach is needed.
Cold Headers supports exact-size sourcing for socket-product tooling, including individual alloy steel L-keys. Review the 0.035 in. width, Short Arm format, short-leg length, and arm length before ordering. This width is part of the hard-to-find end of the range, where loose-driver restocking is often the real problem. The listed B and C ranges keep the tool geometry tied to this exact catalog row.
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
