Hello, new here, not sure if this is the correct area to post...
Picked up an old kwikway model F boring bar about a year ago. From what I have gathered the model F was made in the 30s to 40s. Also there is an early and late model.
I think this is the early model. The depth of cut is set...
This post is about making some very rigid holders for indexable inserts for use with Criterion style boring heads.
This is a Criterion boring head with a typical set of low cost sweated carbide boring bars.
A genuine Criterion like this comes in at around US $5/600 for a 2" version, but...
I made my first serious attempt at boring last week on a supremely under-powered and insufficiently rigid lathe. It took ~4 hours (yes, hours of listening to a belt slipping) to bore out a ~1.75" ID / 1" depth in 1018 (and I over ran my tolerance, so I get to make it again...).
I started the...
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