Draper PZ Type Impact Screwdriver Bit, No.2

Amazon

Shank Bits Size: 8mm Suitable for Stock Nos. 22322 and 81519 Impact Screwdriver Sets Strong magnetic tip for secure grip Provides maximum strength and flexibility Ideal for powered drills and impact drivers, Weight: 0.02 Pounds, Manufacturer: Draper

Electrical World

8mm hexagon shank bits suitable for use with Stock Nos. 22322 and 81519 Impact Screwdriver Sets. Sold loose.