These 4-prong drive centres are designed to give non-slip drive when turning between centres. The prongs bite into the timber for consistent driving. They can be used on all types of spindle turning and are recommended when turning seasoned and balanced hardwood. A 4-prong drive minimises the risk of splitting the grain. It is the probably the most commonly used drive by turners for spindle work. The centre point helps alignment. Place the point on the centre mark of your workpiece. Give the end of the drive a sharp tap with a mallet rather than using your lathe's tailstock to push the drive home. This method removes any unnecessary pressure on your lathe's bearings.