Probe Needle / Probe Tip for micro-electronic probe and probe card, and Punch Needle for micro-punch. Inventory is first-come, first-serve basis - no availability beyond listed lot quantities. GET UP TO A 40% DISCOUNT WHEN ORDERING FULL LOT QUANTITY! All items are precision ground tungsten carbide (WC) with spherical tips, unless specified differently. Dimensions for shank diameter (D), tip radius (R) and overall length (L) are inches, and tip angle (A) is degrees.