Features 1. Made of high quality material, durable practical to use High strength, good toughness, strong shock resistance. Make you me efficient to process products, suitable f woodwking trimming, milling, engraving machine. 2. Eliminate the dangerous temptation of withdrawing the shank from the collet, extend the bit to provide the full depth of cut instead of sht shanking your router bits. 3. Router bit collet use it to achieve full depth of cut when machining dovetail splines, ideal f your woodwking. 4. Quality Guarantee. We have faith in our product always back it up with trustful customer service, please reach out to us if you have any questions problems about our products. Specification Material: Steel Col: See Photo Package Includes: 1 x Shank Router Bit Set Package Includes: 1 x Shank Router Bit Set