These 3/8in. Square Drive deep sockets have a Ken-Grip patented design that has the ability to grip even worn and rounded nuts. The product is designed to minimise damage on worn or rusted fasteners and can be used on a range of fasteners, including non-metric hexagons and E-Torx Drive sizes. The double knurl feature gives a high grip which is essential for quick tool change when hands are greasy or oily. Manufactured from chrome vanadium steel, the sockets and accessories are aluminium free and fully chrome plated for an easy clean finish. Features and Benefits Ken-Grip are capable of gripping fasteners which are up to 95% rounded off Will not damage worn or rusted fasteners Fits a wide range of non-metric Hexagons and E-Torx Drive Sizes for a wide scope of use Fully chrome plated for an easy clean with an aluminium free finish for non-sparking applications Unique 'Double-Knurl' design ensures high grip Available in a variety of metric sizes to suit your requirements Typical A