Husbandry gear (or plough gear) refers to the essential gear needed to run a farm.
It was considered to be a chattel, so should have been included in any probate inventory. It was not automatically inherited by the heir, so was often bequeathed in a will. Sometimes a specific bequest was made because the gear had to be shared between the heir (who had the bulk of the farm) and the widow (who received one third or one half according to local custom).
It may be, though I haven't attempted to check this, that the bequest indicates the presence of other individuals on the farm who had the potential force of will to take control of the items (e.g. a resident uncle; a married sister); but I haven't heard of anyone else suggesting this.
The bequest of the husbandry gear is a sure indication of who the heir of the farm was. This is convenient for the researcher because the transfer of customary property was an automatic process (according to the customs of the manor) and wasn't stated in wills (unlike the transfer of freehold property).
See also: Ambry
“I give and bequeath to my sonn William all my plow gear”