Back by popular demand and updated for 2012, the Racers Edge Power Grip nut drivers come complete with rubber grips and in all common standard and metric sizes. Each size is etched into the bit, just like the original series, for quick reference in your pit box. Each size is precision machined with a narrow overall circumference for the best possible fit in any application. Their new ‘Grenade’ grips make for a locked in but comfortable feel for those long wrenching sessions. Available in 5.0mm, 5.5mm, 7.0mm & 8.0mm as well as 3/16″, 1/4″, 11/32″ & 3/8″ versions.