Sharpening mortiser chisels

[James Boster]

Anyone out there sharpening there own chisel sets for their mortising machines. If so what methods and tools do you use. I have a couple of old 5/8" and 3/4" sets that need sharpened. Thanks

[Barry O'Mahony]

Lee Valley and Rockler sell diamond-impregnated conical hones for sharpening the inner surfaces. For the outside, use whatever you do for hand chisels.

[James Boster]

Thanks Barry I have seen these type of sharpeners, but they only go up to 1/2", and I have a couple of 5/8" and 3/4" chisels. Does anyone know what the the angle of the cones are. I might be able to find a cone abrasive bit for a die grinder if I knew the angle. Thanks.