SecureFit Low Profile Spacer (Part 1 of 2)
The 600327/600328 are stacked together and occupy a total of 0.50 inches of backfocus.
Each is sold separately.
These adapters are a way to use minimal backfocus for bolting SecureFit-compatible parts.
Fits the IRF90 and 3.5″ version Hedrick focuser. *Not compatible with smaller CDK12.5 Hedrick focuser.