1/2 Short Arm Alloy Steel Hex Key is a row-specific alloy steel hex key for buyers matching tool crib stock to socket-product drawings. The ASME B18.3 width band is 0.4975-0.5000 in.; the key is held just under nominal so it enters an in-tolerance socket and bears on the flats.

Production cells often keep common widths at the fixture so operators do not borrow the wrong driver. Short Arm geometry favors compact reach and quick hand rotation; the same width in Long Arm form is the natural comparison.

Since 1962, Cold Headers has supplied specialty socket hardware and the hex keys that complete the working system. Review the 1/2 in. width, Short Arm format, short-leg length, and arm length before ordering. Non-catalog hex-key widths and series can be reviewed when a tool crib needs a special driver.

Technical Highlights

• Style: L-shaped hex key, Short Arm
• Material: Alloy Steel
• Width Across Flats: 1/2 in. (0.4975-0.5000 in.)
• Short-Leg Length: 1.531-1.719 in.
• Arm Length: 5.156-5.344 in.
• Dimensional Standard: ASME B18.3

Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.