1/2" Carbide Ball Nose End Mill Bits - 1/2" Shank Dia,3'' Oal -, Hardened Steels Product Features SPECIFICATION: Carbide Ball Nose end Mill With 1/2" shank, 3" overall length, can be used in routers with 1/2" collect. High Quality:made from solid tungsten carbide (TC),have a Titanium Nitride (TiN) surface to improve heat resistance and reduce wear. Used it strictly for steel, it worked great for that, eats metal fast, beautiful surface finish!Watch your stick out and travel speeds. Applicable Materials: cnc bits usually used for steel?Carbon steel/Alloy steel/Hardened steel/Cast lron, etc.? Wide Compatibility: sisona end mill bits are compatible with most desktop CNC machines, as well as other industrial CNC machines. Just make sure you select the correct-sized collet for your device. 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!