The Beta 100 adjustable pin spanner wrench has two round pins designed specifically to engage the axial holes in the face of certain ring nuts. The legs pivot open and closed with a central adjusting screw, and 2 sets of interchangeable double-ended pins allow one wrench to fit a wide range of sizes. The legs are not spring-loaded, so the adjusting screw prevents the adjustment from slipping. The chrome-plated, rough textured finish on the legs hides scratches and provides a firm grip. The pivot hardware, adjusting hardware, and contact pins have a tough black oxide finish. The legs on this wrench can be adjusted from 18mm to 100mm opening by turning the central adjusting screw. Overall length 250mm. Two included pins cover 4.9mm/6.9mm and 5.9mm/7.9mm hole sizes.