5C collets on schaublin 135?

I have a set of excellent condition 5C collets but an incomplete set of metric B32, the capacity and accuracy of the two are similar and all it would require is a mt5 to 5C adapter which is inexpensive and as the 5C are shorter some sort of draw bar adapter. Thoughts? I might get lucky and find some B32's which would be better but 5C gives me the option for inexpensive soft collets etc and doesn't preclude the use of B32.
For comparison:





If anyone is interested I have 20 inch fractional B32's that need a home as metricfation is complete in my shop
L

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