Workshop Calculations Manual. Contains English to Spanish metric system conversions, trigonometric tables, gears, standard and differential milling machine indexing, general thread systems, taper systems, cutting tools, strength of materials and heat treatment, weight lifting, tolerance tables for fitting, speeds and feeds, and automotive repair. This book is written in Spanish by AL Casillas.

Mariano: "As almost everyone in the world of machines, engines, etc., knows, there's a bible that goes with us, and its name is Casillas. It's a useful book with very important information for anyone working in these fields. I hope you find it helpful!"