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Old 12-11-2019, 02:44 AM   #9
flatheadmurre
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Join Date: Apr 2015
Location: Sweden
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Default Re: Specific questions re using a boring bar (Old school)

It all depends on how much the bar flexes...the first Storm bar i ran you had to go very easy on last cut...nowdays i can do it single pass and end up dead on.

I would go 25/3/1 measuring after the 25 and 3 cut to be able to land within 1 for less honing...you donīt want a rough surface or to much material left to hone...and you donīt want to overbore !!!

A heavy cut will give you taper if the bar flex or is loosely adjusted/worn.

When you have got to know your boringbar you should be able to end up withing 1/2thou.

Get a positive small radius finishcut K insert for the cutter preferably coated.
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