boring bar

  1. M

    [Antique] Kwikway model F - portable boring machine

    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...
  2. tonyfoale

    [How-To] How I made important improvements to boring heads.

    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...
  3. dogma

    Boring Pre-game

    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...
Back
Top