8 PIECE MAGNETIC NUT DRIVER SET
Drive bits for hexagon head screws.
Sizes 6mm,7mm,8mm,9mm,10mm,11mm,12mm & 13mm.
Integral magnet for holding screws securely.
Made from hardened chrome vanadium steel.
1/4" hexagon shank to suit most chucks.
This product comes with a lifetime guarantee (on-line product registration required).