Peachtree Woodworking Supply Adjustable Replacement Tool Rest Sharpening Jig for 6 inch or 8 inch Bench Grinders and Sanders BG | Features Internal Lock Washers for Extra Platform Stability

Got this to help upgrade a 40 yo Craftsman 6-inch grinder. The stock platforms on this grinder kinda sucked and were really no good for precise grinding (such as chisels and plane blades). This jig starts with a tracked base plate that gets installed in front of the grinder wheel, allowing the main part of the jig to slide back and forth in its tracks. Main thing is to make sure the plate is centered and parallel with the wheel. This means mounting your grinder to a plate or board so the jig plate stays put forever. I used 1/2-inch plywood and spent about ten minutes making sure the jig plate was perfectly placed before screwing it into place. The plate comes with four screws but they are too long for 1/2-inch plywood so I used shorter screws. The main jig slides toward the wheel and locks in place. Its platform has a 1-3/16 notch in it to accommodate wheels up to one inch wide (which is what I have). The platform on the jig also can be raised or lowered and set to the desired angle before locking in place. Overall a nice design. The tool being sharpened is clamped into a second jig that then fits into the platform on the main jig. You need to be careful making the tool square to this jig (or whatever other angle you might need) before placing it into the main jig. This second jig can the slide left and right parallel to the wheel allowing a great deal of control. Two different secondary jigs are provided and the Peachtree Woodworking site has additional info describing their uses. I was impressed with this jig enough that I purchased a second mounting plate for the other grinder wheel. This is a relatively inexpensive jig, but for my old setup it's perfect.

Solid construction. Straight surfaces. Very positive locking. Many of this type on the market but this seems to be the one with fewest bugs. Quite happy with it. Helps to watch a few tubes to add to the how to install phase. Patience gets good results as geometry important.

Easy to setup and use on existing bench grinder. Great for restoring the 25degree grinding angle to wood chisels and plane iron prior to honing on oil stone at 30 degrees. The guide plate and tool holder allows sideways movement back and forth the grind the wider tools such as plane blades. Well worth the investment. Should have had one years ago.

Take the time to install properly and it works well. Lots of adjustability

It’s a good jig. It’s not perfect but it’s helped me get more consistent results hollow grinding chisels and plane irons. I’ve been woodworking for a long time. Hollow grinding makes sharpening much quicker but one slip and you have a problem that takes a long time to correct. I would definitely NOT start using this jig on your best chisels or irons. The side to side action is not that smooth and the part that claps your chisel or iron doesn’t hold very well even if you tighten it. So use light pressure and go slow. I struck a line on the tool holder base that helps me easily line up the tool to the wheel. I’d recommend this.