OptionalshaftDiameter: numberOptionallength: numberOptionalunit: unitOfLengthEnumOptionalframe: Bit.Inputs.Base.FrameOptionalshaftThe diameter of the shaft the key sits in, in unit, which sets its width and height; DIN 6885
keys shafts over 6 and up to 65 millimetres.
OptionallengthThe key's length from one round end to the other, in unit; at least its width.
OptionalunitThe unit the key is made in and its lengths are read in.
OptionalframeWhere the key lies: its bottom face's centre on the origin, its height along the normal, its length along the direction. Left out, the ground, facing +Y.
A DIN 6885 form A parallel key with round ends for
parts.mechanical.keys.din.parallelKeyand its twin with face roles: sized for its shaft, its length, the unit and where it lies.