This is a 4 - piece brad point wood drill bit set made of High-Speed Steel (HSS), designed for creating clean holes in wood.
The set includes bits in metric sizes 5 mm, 6 mm, 8 mm, and 10 mm, housed in a bright orange storage case.
The bits feature a centering tip to prevent walking and two spurs to cut clean edges, reducing splintering.
This specific kit appears to be the Enkor 19131, suitable for both soft and hard wood applications