19 mm Metric Hex Key covers one precise width in the metric side of the socket-tool drawer. The ISO 2936 width band is 19.00 / 18.87 mm, sized just under nominal so the key can enter an in-tolerance socket and bear on the flats.

Production equipment maintained in the United States often still follows metric socket-drive callouts. This family supports the metric side of the catalog, including socket-drive cap screws, flat heads, buttons, shoulders, and set screws.

Review the 19 mm size and ISO 2936 max/min width data against the print before ordering. For maintenance and purchasing teams, Cold Headers can help confirm the metric width before quote work begins. Keeping the driver as a loose single size helps replace the exact tool without buying a full set.

Technical Highlights

• Style: L-shaped metric hex key
• Width Across Flats: 19 mm (19.00 / 18.87 mm)
• Drives: drives M24 metric socket head cap screws
• Dimensional Standard: ISO 2936

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