Archive of Collections



Details and Image



Item#TypeModelType No.Version No.MakerCountryMaterialScale LengthDateCondition
LAW014Linear
10-G
Cutting Speed Calculator
1
LawrenceUSABoxwood w/white painted surface and printed scales
"10"
1946
C5

Notes: "Slide rule for calculating cutting speed in f.p.m for given drill diameter in inches millimeters, or drill size and spindle speed in r.p.m."

Click on the Condition Code to obtain more details.