These are replacement centre points for the FISCH multi-function Forstner bits. They come in packs of 5. The shanks of these points have a self-locking taper matching the tapered socket in the centre of the multi-functional Forstner bit. Once inserted into the socket they are very secure and run true. To replace the point or exchange it for a pilot drill we recommend the FISCH point removal tool (105939).-bg