Bitstock

• (n.) A stock or handle for holding and rotating a bit; a brace.
Found on http://thinkexist.com/dictionary/meaning/bitstock/

bitstock

noun a carpenter`s tool having a crank handle for turning and a socket to hold a bit for boring
Found on https://www.encyclo.co.uk/local/20974

Bitstock

Bit'stock` noun A stock or handle for holding and rotating a bit; a brace.
Found on http://www.encyclo.co.uk/webster/B/58
No exact match found