Collets for Tap Holder

thingiverse

A variety of collets are included in the ZIP file for items 16682 and 16890! Containing 48 STL files to suit my frequently used drill bits, including those for hex bits (size 6.25mm face-to-face). The collets work well; check out the photo with the 15mm thick oak piece, pierced by a 1mm bit. It took time, but succeeded! To get the desired collet, use the ZIP file or generate another size using the OpenSCAD script. Offering metric sizes from 1mm to 8mm, and three different gap/tolerance values: 0.10, 0.25, and 0.50 mm. Note that the OpenSCAD has not been extensively tested; some features are incomplete...oops! However, collets for drill bits (cylindrical) and hex bits should work effectively.