Tungsten carbide cutters for spiral cutter blocks

there are two types of these, square, which are perfectly square

15mm and the R150 have a slight radius, check the pictures

so see what this means, the R150 cutters won't fit in a block

intended for square cutters as they bulge out 

the square ones should fit in both cutter block types.

 15mm square by 2.5mm thick by 30 degree

cutter heads with screw.

15mm by 15mm R150 cutters are sold without screws

these have a slight radius and will only fit blocks which are made to take them

Fits the Axminster AP260SPT (107807) AP310SPT (107808), AT107PT (101156), AT129PT (101157) AT310T2 (106202) and AP310T2 (107702) planer thicknessers, also fits MB103 thicknesser (103628) , CT330ST (105070) and AT150SSP (106240). Also fits the Martin range of machinery.