Through Hulls

30/06/08

This is a special “grooving tool” that I bought to put the “O” ring grooves on the inside bore of the through hulls.  It was very expensive but really is very well made.  Its even got holes through so you can pump lubricant through the boring bar and it will squirt out at the tip.  The carbide tips are changeable and I bought the required ones to cut 3mm “O” ring grooves.  Made by P Horn cutting tools.  Link on the suppliers page.

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