Table Of Reference For Tap And Drilling, General Tools 715. Product Details GN715 Features: -Reference table. -Essential tap drill and decimal equivalents reference table for toolmakers, machinists and mechanics. -Front has machine screw size tap drill chart for recommended 75% depth thread. -Back has decimal equivalents table in 64ths from 0.02'' to 0.98''. Dimensions: Overall Product Weight: -0.01 Pounds. DOUBLE SIDED TOOL: This guide features a Tap Drill Depth Chart, decimal conversions from 1/64" to 63/64" and a ruler graduated in 64ths FRONT SIDE: Front side has a machine screw size tap drill chart for recommended 75% depth thread. BACK SIDE: Features a decimal equivalents table in 64ths from 1/64" to 63/64". 6 INCH RULER: Graduated in 64ths. WORKS WITH: National Fine, National Course, American Standard Pipe and metric threads. ESSENTIAL TOOL: Essential tap drill and decimal equivalents reference table for toolmakers, machinists and mechanics. GENERAL TOOLS: We're a recognized leader in designing and developing specialized precision tools dedicated to delivering exceptional customer service. We encourage artisans and DIYers to work smarter, measure better, and repair more productively. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.