Hidri tools supplies universal cutter spiral grinding attachment. This is specially manufactured for the grinding of straight and helical fluted readily. It can be mounted on any tool and cutter grinders. There are two models of the attachment. Model sga-1 has cross slide movement and micrometer adjustment system but there is no cross slide movement and micrometer adjustment in the model sga-2 .The work spindle from this attachment travels in spiral pitch from zero to infinity in left or right direction.