Uxcell 3Pcs Machine Thread Taps 8-40 Un 2B High Speed Steel 6542 Straight Flute Product Features Thread Tap Size: Thread size: 8-40 UN; accuracy: 2B; square shank width: 3mm / 0.12"; thread length: 20mm / 0.79"; total length: 56mm / 2.2". Straight Flute Tap: Straight flute tap, clear threads without burrs, right hand tapping direction. Provides rapid downward chip removal to achieve efficient thread cutting, suitable for processing through holes or shallow holes. Wide Applications: Thread taps create new threads or re-thread damaged or jammed threads. Widely used for most metals, iron plate, copper, zinc, alloy steel, abrasive steel, A3 steel, stainless steel. Add proper tapping oil for higher quality threads and more durable taps. 6542 High-Speed Steel Taps: Offer high hardness, good toughness, wear resistance, and excellent cutting performance. Uncoated taps feature just the base substrate without any additional coatings, great for a wide range of applications. Tips: Machine taps are used with tapping, drilling, automatic or milling machines. Drill the holes with a twist drill bit first, then tap with a thread tap. The tapping angle should be 90 degrees vertical and stable. NOT recommended for hand and electric drill tapping. 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!