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Old 29th September 2015, 07:09 PM
cloverleaf cloverleaf is offline
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Join Date: Sep 2014
Location: Oxfordshire
Posts: 117

I'm 99% sure that the HFT barrel is the same as the MPR unit, although the part numbers are different (E700 v. JT112) so bear this in mind.

Going by my MPR barrel the vernier says the hole is 1.8mm dia (so probably 2.0mm allowing for the offset jaws), while eyeballing the front edge of the hole with the depth gauge suggests around 8.9-9.0mm; so I'd suggest that the hole centre is 10.0mm from the front face.

Can't really tell you more without something of a suitably good fit to stick into the hole and measure against
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