TM Zeta Ballpoint pen kit (rear twist type).
The Zeta Pen Kit is recognised as one of the best value, quality single tube kits on the market.
The pen is easy to make with only one tube required. It uses a Parker style refill.
To make this pen you will require:
9mm Drill Bit
Zeta TBC/Mandrel Bushes
Mandrel or 60 degree Dead & 60 degree Live center