Wera 800/4 Z bits are screwdriver bits for slotted screws

as stated in the manufacturer's key points

Materiale: High grade chrome-vanadium steel

The manufacturer specifies the materials and dimensions for this variant: the blade is made of chrome-vanadium-molybdenum steel with a matte chrome coating

Mating compatibility: Compatible with the Original MC4 family

Håndtag VARIO 6x98mm Unit(s):Pcs Wera 800/4 Z bits areProduct Overview The Wera 05002900001 is the 80 Vario handle designed for mounting 6 mm Vario blades. The handle is a Kraftform Plus multi component handle with a length of 98 mm and is designed to accept 6 mm Vario blades or a Vario adapter. The product is identified in the manufacturer's data sheet and carries product number 05002900001. Construction and Function Multi component Kraftform Plus handle with hard gripping zones for high working speeds