sploo
Somewhat extinguished member
I've gained a pair of milling cutters that appear to have been the victim of some bizarre attempt to grind parts of the shafts to hex shapes:
The cutter on the left is 24mm diameter, and the short stub at the top looks to be 1/2". It's less than 1/2" long so probably unsuitable for mounting in a collet. The ground section looked to originally be 3/4", but there's enough material remaining even in the bodged section to obtain a 16mm (5/8") diameter if re-ground to round.
The cutter on the right looks to be 1 1/8". The unground (unbodged?) area of the shaft looks to be 1/2"... maybe a bit thin for such a large cutter? Anyway, the ground section is a mess, and would only support maybe a 10mm dia shaft if re-ground to round.
Both cutters have centre dimples on both ends, so assuming those recesses are "true" to the grinding of the cutter flutes I was thinking that I could put the smaller cutter on centres on the lathe, turn it with a dog, and try to grind the thicker section to 5/8".
For the larger cutter, I guess I could try to build up the shaft with the welder, then grind to 1/2".
Worth a try, or is this destined for failure?
The cutter on the left is 24mm diameter, and the short stub at the top looks to be 1/2". It's less than 1/2" long so probably unsuitable for mounting in a collet. The ground section looked to originally be 3/4", but there's enough material remaining even in the bodged section to obtain a 16mm (5/8") diameter if re-ground to round.
The cutter on the right looks to be 1 1/8". The unground (unbodged?) area of the shaft looks to be 1/2"... maybe a bit thin for such a large cutter? Anyway, the ground section is a mess, and would only support maybe a 10mm dia shaft if re-ground to round.
Both cutters have centre dimples on both ends, so assuming those recesses are "true" to the grinding of the cutter flutes I was thinking that I could put the smaller cutter on centres on the lathe, turn it with a dog, and try to grind the thicker section to 5/8".
For the larger cutter, I guess I could try to build up the shaft with the welder, then grind to 1/2".
Worth a try, or is this destined for failure?
