Description of SHDIATOOL Adapter: 8-Inch to 11/8-Inch Shank - Enhanced Connectivity for Improved Efficiency
1PC Adapter for core drill bit,Diamond Grinding Wheel.(Change Connection). This Adapter could change 5/8 Inch-11 Thread to 3/8-Inch Hexagon Shank. Can fit 5/8-Inch-11 tools to your 3/8-Inch Hex Shank machine through this Adapter, for exmaple fit the M14 core bits to your Electric Drill with 3/8-Inch Hex Shank;.
I recently purchased an adapter shank for my industrial drill from this brand in the Cutting Tools category under Industrial and Scientific. As a result of using this product, I found that it fits perfectly and securely onto my drill bit. It's also very durable and shows no signs of wear and tear. My only concern is that it's a little pricier than other similar products on the market.
Pros
Fits perfectly on industrial drill bit, durable
Cons
A little pricey compared to competitors in the market.
Initial purchase was for a 5/8-11 triple shaft and it did not match the extension. I needed to find, buy and use a hex shaft for my adapter. 18 inch brick drilled with no problems. Went like clockwork
Sometimes "stainless steel" on Amazon is actually very poor steel coated with a very thin layer of zinc (galvanized steel). The mandrels/adapters I received were *NOT* galvanized. Appears to be good steel. I had a wire brush wheel for use with an angle grinder. Instead I wanted to use a brush with an electric drill. This adapter screwed in easily.