Gunsmithing Gear: Grizzly Digital Tailstock Readout
Grizzly Industrial, makers of gunsmith lathes and other products, offers a Digital Tailstock Readout Kit for just $149.95. This digital readout (DRO), model T10118, is an affordable, helpful tool for shooters who do their own lathe work, and who need a fast, handy way to measure depth of cut with their tailstock. On the www.Grizzly.com website, you’ll find a full description of the Digital Tailstock Readout, complete with photos and product features. The unit is very versatile. It has two (2) digital readouts. One on the unit itself, PLUS a remote display that can be positioned up to 6 feet away. Both displays feature 0.0005″ resolution, inch or millimeter display, zero keys and ON/OFF keys. The scale has an 8-inch range and its display features ABS or INC mode as well as a Hold key. Both displays read independently of each other.
Shop Review by Mark LaFevers
What I find most helpful using this Grizzly Digital Tailstock Readout is the way it enhances the speed and certainty of multi-step processes. For instance, when preparing to bore a deep hole by first stepping through various bit diameters to get close, you are unlocking and moving the tailstock to change bits. The Grizzly DRO lets you lock down with a new bit in the chuck, hit zero as the leading edge of the flutes align with the face of the bore. As you are backing each bit all the way out to clear chips, the DRO lets you fast return without counting handwheel revolutions to within a hundredth, then slow down to begin the cut. This is very helpful in keeping track of what’s going on, and it’s a good backup for fine control (comparing the last few thousandths with your tailstock’s manual dial). I have a dial indicator set-up for fine work off the tailstock, but opted for this DRO instead because of its greater range and equal accuracy.
Mounting Tips and Splash-Guards
As the digital transducer is sensitive to contamination by liquids, you’ll need to be careful about splash from your cutting fluid sources. I used a simple stationary spring clip to hold a plastic sandwich bag over the face to catch any splash during chamber reaming using high pressure through-the-barrel flushing. The plastic was easy to see through with the eye, but the camera wanted to catch light glare and not show the on-tool digital display well. You can mount the remote readout wherever it is convenient, but I wanted my vision focused only in the working area for this operation.
For the value, I would rate this tool as a “must have” for anyone currently working without a DRO on their lathe tailstock. The Grizzly DRO is simple to set up, easy to operate, and has an ample 8″ range. Durability is unknown at this time as I’ve just started using the unit, but hopes are high. Like all your other electronic tools, keep an extra set of batteries on hand. Also, please note — to keep the price down and make the Grizzly DRO fit anyone’s particular tailstock quill diameter, Grizzly correctly judged that if you were in the market for this tool you will be able to build your own quill adapter.
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Tags: Digital Readout, Grizzly, Gunsmithing, Tailstock
I have one install on my lathe and it works like a dream. I just did a 308 barrel today, and is worth every penny that I paid for it.
First, I am not knocking this product, it certainly is a nice addition to anyones set up.
1. It would replace the idea of using an adjustable ram stop and dial indicator and magnetic holder.
2. It does not address the issue of being relational to the barrel tenon. I further clarify this by saying, if you move your tail stock you have lost your point of reference(starting point). This means you would have to lock down your tail stock and run your reamer into the tenon/chamber and bottom it out. Then zero out and start over. This can start another set if issues. This also could lead to damage to your reamer if not done very carefully.
I have seen on Home Shop Machinist or Practical Machinist where inexensive Caliper were modified with magnets to do the same function.
Overall the product is a great concept and needs to be done with a coolant proof unit.
Nat Lambeth
I have this unit on my 14×40 gunsmith lathe. It works great and saves a lot of time on jobs but for the price it should be coolant proof and wireless. The data cable is always in the way,to short and pulls out of the caliper to easy. You can not mount the monitor, which is plastic and should be aluminum, on the tailstock with the caliper, as seen in their picture, there just isn’t enough room.