Read more: 8 Hammer Types And When To Use Them Although some router bits are made of High-Speed Steel (HSS), most are either Tungsten Carbide Tipped (TCT) or solid carbide. To sharpen them ...

Tungsten-carbide tipped (TCT ... there will be nothing left so a replacement will be needed. Sharpening TiN drill bits is also difficult because the coating is thin. If they lose this coating ...

A custom tungsten grinder like this one might be just the thing to flatten that learning curve. It comes to us by way of [The Metalist], who turned an electric die grinder into a pencil sharpener ...