Description of Yonico 43040C Diameter Carbide Forstner
This carbide forstner bit has a 1-3/8" cutting diameter and a 10mm shank compatible with all standard drill and drill press chucks. Drill clean and accurate holes in solid wood, plywood and MDF. Constructed with carbide tips for quality and longevity. The 10mm shank is compatible with all standard drill and drill press chucks. Hardened steel body for increased rigidity.
It took me a while to get this bit, but it didn't fit my plans. No fault of product or carrier but I needed a 3/8 shank and this one has a 10mm shank. The item description says 10mm shank, but I didn't notice it and will be returning the item with a 3/8 shank for a while.