Tork Craft Drill Bit Hss W/Weldon Shank 11mm

11mm HSS Drill bit – Weldon Shank High Speed Steel drill bit with Weldon shank. Quality Tork Craft product. What is a Weldon Shank?
The term comes from the Weldon Tool Company. The Weldon shank was the first straight shank with a locking drive flat. What’s in the box
1 x Drill Bit HSS W/Weldon Shank 11mm