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Your cart is empty.Index able Boring Tool Set with 2" Boring Head, R8 Shank & 4 Boring Bars ~ Boring head features a 1-1/2"-18 threaded back so you can change shanks as needed. ~ A micrometer lead screw provides 0. 001" direct reading accuracy and makes adjusting easy. ~ Boring head offset is 5/8". ~ Minimum boring diameter is 0. 394". ~ Maximum boring diameter is 5. 906". ~ Maximum boring depth is 1. 970". ~ The cross hole is 1/2". ~ R8 shank has a drawbar end thread of 7/16"-20. ~ The included index able boring bars come with TCMT 21. 5 C6 carbide inserts for steel and alloy. ~ The set also comes with torn & l-shape hex wrenches and a fitted carrying case. ~ A micrometer lead screw provides 0. 001" direct reading accuracy and makes adjusting easy. ~ 1 DIV = 0. 001 which means when turning the dial by 1 division/graduation, the boring head's travel is 0. 001" in radius movement and 0. 002" in diameter movement.
Luke
2025-09-05 15:36:28
Nice storage case. Performed very well and accurate for my first time ever using one. Moving the dial .05 means you will be taking a .1 cut. IE .05 of each side of your circle. Although one of my boring bars is slightly oversize and does not fit in the boring head.. I’m more concerned with its overall accuracy and it’s very accurate.
KC Bender
2025-08-30 11:40:54
Solid quality, well made and finished. Everything works almost flawlessly. I'd buy again.
DGewey
2025-08-28 18:02:19
Very impressed at the quality of this cutter for the price! It feels very precision, however I did have to tinker with the 3 gib screws in order to get the head to move smoothly without any "slop" but that's typical with any boring head that uses a taper/gib setup. Run-out is irrelevant, since the tool is supposed to run off-set by design, but even still.. the static upper-section is very straight, and I only measured about .0005 to .001 run-out in 5 separate, complete setup/tear downs, so at least it's consistent! For a home shop, and anyone running a sub 3HP mill, this is more than adequate, and can easily produce bores that match the highest level of accuracy you can produce with any other tool using your equipment. So if you can achieve +-.0015 on your mill, then you should be able to hit that with this head, if the best your mill will do it +-.002 then that's what I would expect with this boring head and well. Definitely worth the money! Glad I didn't buy the cheaper versions through.
Chuck
2025-07-11 18:39:09
Ill start with the disappointment. The R8 draw bar threads were poorly tapped, my draw bar would only start a few threads. This was disappointing on a $200+ head it may have been expected on a $47 Harbor freight unit. Originally I was going to deduct a couple stars until I used the boring head.I was very happy with the rest of the package. The boring bars were high quality and with the replicable carbides makes a nice package. After mounting it in my mill and boring a few holes in some half inch scrap I was quite happy with it, thus the 5 star rating. I didn't feel it was fare to be negative when the tool did perform very well as intended!!This appears to be the same set as sold by Shars???
Carl Riemann
2025-06-01 18:07:26
This boring tool works as advertised
Larry W
2025-05-27 10:08:47
What a surprise was in a nice case with all the allen wrenches. nicely oiled much more precision than I expected. If I had any words of wisdom, where the boring head screws on to the R8 chuck needs unscrewed and a little blue of green Loctite applied. Great addition to my Bridgeport tools .
Chad L.
2025-03-23 18:58:56
No complaints about the boring head itself or the bard included. I've used it boring up to 4.5" holes in 2" 316L SS flanges that were too big to bore in my lathe. The inserts that come with it, however, are basically crap (that's what I expected); you'll need to find some reputable brand inserts from your favorite supplier. I currently am partial to SECO inserts.
william vile
2025-01-14 21:50:06
The fit and finish on this boring head is very good. I need a small boring head for a project and did not want to get a cheap or expensive one. I thought this one with the insert boring bars would be ok and I was impressed with the quality. It looks better in person then the pictures. I used the boring bar on a welded part that got very hard after welding. I broke one corner of one insert but took it easy after that and it worked well also.
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