This means there is a good chance that there is a metric cutter that will cut an imperial slot and the other way round. But there no reason why it cannot make more cuts in order to widen or deepen the cross piece of the T. Once the shank of the T has been cut the T-slot cutter has to be able to cut the cross piece of the T in one pass. There is not only some flexibility regarding the size of the slot but there is also some flexibility regarding the cutter. But, with a little thought, it should be clear that the cutter has to be able to cut a T-slot where the top of the T is the size of the cutter in one pass. Sometimes it can appear the the amount the T-slot cutter has to cut is too much to do in one pass. The key difference is that the narrow part of the shank on the T-slot cutter is straight whereas on the Woodruff cutter it is part of a small circle. There is a similar type of cutter that is useless for cutting T-slots. When the shank of the T has been cut it is then possible to cut the cross piece of the T. This reduces the risk of workpiece etc accidentally making a ding in the corner. This can be done with a slot drill ground to cut 45 º chamfers. The top two corners of a T-slot have two small chamfers on them. This is so if a bolt is screwed against the bottom of the T-slot and forms a burre, this will not catch on a T-slot nut. The depth of this cut should slightly deeper than the cross of the T. This is because, apart from the use for holding workpieces etc, the t-slot is often used for aligning the workpiece or the workholding device. It is important that the slots are straight, are of an accurate and consistent width with a reasonable finish. Alternatively it can be cut using a side and face cutter on a horizontal machine. This can be done using a slot drill or an end mill on a vertical machine. The first step on any T-slot is cut out the shank of the T. 729 the end of the T-slots on a milling table Making a straight T-slot

T slot covers for milling machines