Neilsen 8pcs 150mm 1/4 inch magnetic nut driver The Neilsen magnetic nut driver is manufactured from hardened chrome vanadium steel and features magnets within their nut drivers. The set includes all popular sizes. Features: 1/4’’ hex shank fits drill drivers and impact drivers. Chrome vanadium steel. Hardened steel. Magnetic connector bits. Length 150mm. Contents: 6, 7, 8, 9, 10, 11, 12 & 13mm