Threading Dies For External Threads, Thread Tap For Internal Threads, Thread Product Details Threading Dies and Tap Size: Metric Size M30.5, M40.7, M50.8, M61.0, M71.0, M81.0, M81.25, M91.25, M101.25, M101.5, M111.25, M111.5, M121.5, M121.75, M141.5, M142.0, M161.5, M162.0; SAE Size #4-40 NC, #6-32 NC, #8-32 NC, #10-32 NC, #10-24 NC, #12-24NC, 1/4-28 NF, 1/4-20 NF, 1/8-27 NPT, 5/16-24 NF, 5/16-18 NF, 5/8-18 NF, 3/8-24 NF, 3/8-16 NF, 7/16-20 NF, 7/16-14 NF, 1/2-20 NF, 1/2-13 NF, 5/8-11 NF, 9/16-18 NF, 9/16-12 NF. Application: Taps and dies are metal threading tools used to cut and restore internal and external threads precisely. A tap is used to form the female component of the assembly, as in the case of a nut or socket, a die is used on the male component, as in a screw or bolt. In other words, a Tap is used to create the internal threads in a hole for use with a threaded fastener and a die is used to make or repair external threading on a round rod, screw, or bolt. Thread Pitch Gauge: Thread pitch gauges are used as a reference tool in determining the pitch of a thread that is on a screw or in a tapped hole. This tool is not used as a precision measuring instrument, rather it allows the user to determine the profile of the given thread and quickly categorize the thread by shape and pitch. T Handle Tap Wrench: T Handles hold the end of a tap to provide extra leverage for hand tapping making them very useful for confined spaces or where extra reach or leverage is required. T Handle Tap wrenches may also be used with screw extractors, drills, and other tools. Material: Taps and dies are used to cut metals and are typically made of high-speed steel or hardened carbon steel, with the former is much more robust and used for a broader range of material. These cutting materials are suitable for threading steel, cast steel, cast iron, non-ferrous metals, plastics, softwood, and hardwood. 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.