Calculator for inside ring engraving using IREO-15 & IREO-20

Relates protractor angle, tool shank size, ring inside-diameter, ring width



For a givenprotractor angle
ring inside diameter
ring width
engraving tool shank diameter		θ
D
w
d
}		degrees

inches or millimeters

this calculator will determine the fourth value if you enter any three.

w= d=
θ=° D=

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