Description
This is a 6mm HSS drill bit with a Weldon Shank. The Weldon Shank is a feature that allows the bit to stay in the hole more securely, which is beneficial for drilling through hard materials.
6mm 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