12 piece impact screwdriver bit set 8mm hexagon shank bits suitable for use with stock no.81519 & 22322 impact screwdriver sets. Display packed. Contents. 2 plain slot bits: 8 & 10mm. 2 cross slot bits: no.2 & 3. 2 pz type bits: no.2 & 3. 6 draper tx-star bits: t 30, t 35, t 40, t 45, t 50 & t 55.