Comoware Countersink Bit Holders

These are designed to work with the case that comes with this set, https://www.amazon.com/dp/B0F6XL1Q2B?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1 The side pieces are just held on with compression, you could glue if you really want, but not needed. When installing just make sure the small end of the side wedge is going in first as the notches on the side are tapered. I do recommend doing this in PETG as PLA with give out over time in this application.