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tool category	diameter	form up/down
half shear	0.080	down
half shear	0.090	up
half shear	0.090	down
half shear	0.114	up
half shear	0.114	down
half shear	0.118	up
half shear	0.118	down
half shear	0.125	up
half shear	0.157	up
half shear	0.180	up
half shear	0.197	up
half shear	0.265	up
half shear	0.375	up
half shear	0.514	down