100mm A2-3 Fully Machined Backplate
These backplates are fully machined to suit Pratt Burnerd 3 & 4 jaw chucks and may be used on other chucks with the same register & mounting holes.
To suit Pratt Burnerd 100mm scroll chucks.
Register = 76.2mm
Holes = 3 x M6 on 89mm P.C.D.
Part Number 8271-10211