Springfield Leather Company Natural Veg Tan Cowhide Tooling Leather Pre-Cut Project Piece Details – Pre-cuts from import tooling B grade (#1) vegetable tan cowhide leather. Available in selected 8 weights (leather thickness): 2-3oz (0.78 – 1.19 mm) , 3-4 oz (1.19 – 1.60 mm), 4-5 oz (1.60 – 1.98 mm), 5-6 oz (1.98 – 2.39 mm), 6-7 oz (2.39 – 2.78 mm), 7-8 oz (2.78 – 3.18 mm), 8-9 oz (3.18 – 3.58 mm) , 9-10 oz (3.58 – 3.96mm). Springfield Leather Company’s imported veg tan tools well, cuts well, and molds well. It accepts dyes and oils well. It’s affordably priced, and the products you make with it are going to please. Leather is a natural product that cannot always be consistent, and while grading is subjective, here are some guidelines to help you make the best decision. Grade #1 is the best and cleanest leather we offer. If a piece can be described as nothing short of perfect, it’s certainly grade 1 leather. However, grade 1 leather is not without its imperfections! Leather with brands, excessive bug bites and top-grain knife marks is not considered Grade 1. Other scars are fine, but the placement could affect the grade. For pre-cuts, a distinct blemish in the middle of a piece will knock down its grade, but a blemish near an edge or corner may not. Also consider the amount of blemishes on a piece. A few small scars that won’t cause much waste should be just fine. If a crafter is facing an inch of loss, it may be no big deal, but if a crafter is losing five square inches on a 12 inch by 12 inch piece, it’s probably not a grade 1 piece of leather. Please refer to visual aids included for examples. If you’re still unsure, please send us a message and we will be happy to answer your questions.