Drilax 5/8"-11 to 1/2 Inch Drill Adapter – Heavy-Duty Triangle Shank Arbor for Diamond Hole Saws, Grinding Cups & Polishing Pads | Converts Angle Grinder Accessories to Standard Drill

Worked well for me when using it to adapt a 5/8-11 threaded abrasive cup wheel to work in the 1/2" chuck of my drill press.

This is a shank for rotary tool attachments that do not include one. I recently ordered a diamond encrusted hole-cutting tool for making pipe holes in concrete blocks, d-boxes, and the like. But it lacks a shank. I also ordered a very stiff-bristled hard-duty brush, for removing corrosion from drain openings in my lavatories and a few other places. It also needs a shank. Both tools take a 11/32 shank, and both are shown in the photos. I went to all four stores in my county that sell hardware. Plenty of attachments that take the same 11/32 shank. But not one shank! I had wanted to use both of these tools since purchasing them, but realized Amazon was the only avenue for doing so. So I bought the shank. Took a few days to get here, but I'm back in business. This shank is a high-quality, precision item, no sloppy zinc plating or artless welds. It sits well when tightened, and fits in my small rechargeable drills, Porter Cable, Makita and Ryobi. But I will be using it in my Dewalt hammer drill to tackle the harder jobs. I may even be able to get the embarrassing mineral ring off my guest loo; one never knows when Cousin Chuck and Camilla are going to pop by for dinner, and I can't exactly tell the King that the loo is out of order, now, can I? It just isn't done. --I am quite pleased with this item, enabling me to use two new tools and several old ones. It is of better quality than expected. If you need one, you will not be disappointed with the quality, so go ahead and buy it.

Edit- Was contacted by the supplier about the issue, and they corrected it for me. They are responsive to the issue. end edit- I got this to put in my 1/2" drill so I could use a 1" boring bit. It would not fit the drill. listing states 1/2" shank, but it is larger. I ended up putting the boring bit in a lathe and threading the adapter into the boring bit to hold it true to the bit. Then turned down the shank to 1/2". Lost most of the flats on the shank in the process. There was a wobble to the shank as I turned it, but cannot say if that was in this adaptor or in the coring bit. I'll give the benefit of the doubt and say it was in the bit. The boring bit and adaptor are a trued package now.

I needed to attach a tool with 5/8 arbor to me drill press. This worked well it was available next day shipping.

5/8"-11 Male to 1/2" Triangle Shank Item arrived in package with damaged threads. I contacted Drilax and they promptly apologized and send out a replacement. Good communications and support. You have to love a company standing behind their product with customer support.