Don't forget about slitting saws when you have a part that calls for a deep slot. With a slitting saw, slots with a large depth-to-width ratio can be made both faster and straighter than with a long and skinny endmill. There are two slitting saw arbor sizes available in our TTS toolholder lineup: 1" and 1/2". These are keyless arbors, so they will work with both keyed and keyless slitting saws. We also have a selection of HSS slitting saws to fit these arbors.