MEX Hex Wrench


The Runwell Mex Hex Wrench is a ball-hex allen key combined with a metric ruler. Measuring up to 110 mm from the ball-end tip, the large size markings enables you to confirm sizes easily.

Available is three sizes: 4 mm, 5 mm and 6 mm

Established in 2011, in Tsubame-Sanjo, Japan, an area famous for metalworking, Runwell maintain their focus on high quality and traditional Japanese craftsmanship. Beyond the concept of quality, Runwell create products that bring pleasure to the maker, the customer and all users.

Materials: Cro-Mo steel
Dimensions: 145 mm / 165 mm / 185 mm (length)
Maximum measurable length: 110mm
Weight: 17.5g / 31g / 50g

Made in Japan

About the Brand


A Japanese manufacturer with a 400-year history of craftsmanship, Runwell creates high-quality metal tools and equipment, including those used for track cycling. Located in the Tsubamesanjo region of Japan, known for its rich manufacturing heritage, Runwell is committed to providing reliable, eco-friendly, and metal-based products. Their environmentally conscious initiatives include zero-plastics development, reduced paper catalogs, and sustainable packaging. Established in 2011, Runwell's mission is to deliver top-quality tools to support mechanics and cyclists worldwide. They have earned recognition and are now a part of international sports events.