Micro Grain Carbide End Mill - Zrn-A Coating - 4-Flute - Inta1/4"-4 (1 Pc., Before you buy: Speed Tiger end mills require correct spindle speed / feed rate for best performance and to avoid breakage. Contact the seller for more info. Specifications: 4 flutes Cutting Diameter: 1/4" Cutting Length: 3/4" Shank Diameter: 1/4" Full Length: 2-1/2? Package Contents: 1pc/package SPEED TIGER PRECISION TECHNOLOGY CO., LTD. stands for High-Quality. Established in 1998, Speed Tiger specializes in the production of precision carbide end mills, inserts, and other tungsten carbide steel cutting tools. Speed Tiger crafts cutting tool at nanometer precision. The world's highest precision, 2?m, enables users to achieve unsurpassed cutting quality and performance. Advanced Production Facilities Technology - Speed Tiger has 73 sets of grinding machines from Germany, Switzerland, Japan and Taiwan. Professional Coating Facilities Technology - Speed Tiger has its own coating facilities with equipment from Ionbond and Platit of Switzerland. This gives Speed Tiger the ability to develop specialized coatings based on customer requirements. Precise Quality Control Policy - From raw materials to finished products, Speed Tiger insists on a strict inspection policy to make sure every product consistently meets exacting quality standards. Identity Number - Speed Tiger created the End Mills Traceability System in order to ensure the accountability of each process participant. Each end mill has its own identity number on its shank. Product Features GENERAL ROUGHING CUTTER - Speed Tiger 600 Nano carbide tools excel at working carbon steels (~HB225), alloy steels (HB225~325), pre-hardened steels (up to HRC45), hardened Steels (HRC40~45), cast iron HIGH PERFORMANCE FOR HARD MATERIALS - Cutter is made of Micro Grain Carbide that is very tough, resists wear and offers high cutting performance ZrN-A COATING - Zirconium nitride (ZrN) +Titanium aluminum boron nitride (AlTiBN) coating lubricates the end mill for stability at high temperature and superior wear resistance at high cutting speeds, offering better heat resistance than TiAlN, TiN or TiCN coatings HIGH-QUALITY - Flutes ground by a world-class ISO-9001 Factory; Great performance at a competitive price. DEDICATED SUPPORT - Contact seller via Amazon anytime for cutting condition data to get the best performance from your Speed Tiger cutters Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!