The HHIP Draw Boring Shank impressed me as a reliable and efficient industrial tool. As a result of my tests, I determined that it was easy to use and produced accurate holes consistently. Its sturdy construction also provided me with the confidence that it would withstand heavy use without breaking down. However, I did notice that it could be quite noisy during use, so using ear protection is recommended. Overall, the HHIP Draw Boring Shank is a top-notch cutting tool that is well worth…
Pros
High-quality and durable material ensures long-lasting use.
Cons
Requires additional tools for use, increasing overall cost and complexity of the woodworking project.
It does what it's supposed to do but I wish they hadn't painted/oxidized/whatever the black finish after cutting the threads because it was too tight to fit my drill head. I had to run it on my mill and hit the threads with a wire brush to get it off and then I was barely able to attach it by twisting it off the drawbar with a wrench and holding the drill head with the rod. . It's a lot easier to toggle on and off now, but expect it to give you a bit of a struggle the first time or two…
I have a grinder with an Erickson QC30 spindle. I have a couple of 3/4 inch collets and this thing wobbles uncontrollably in each of them. At any RPM, feed, length or drill rod geometry, it screeches so loud it could almost replace an AC/DC lead singer. I mean at 75 rpm, 0.001 inch per revolution it screams just as bad as it does at 1000 rpm and 3 ipm. I ended up buying (even cheaper) a reamed NMTB30 shank and sending it in for regrinding of the flange to QC30 spec. Grinding work costs…