Please fill out the form below for Cutter Countersink and get a quote for part number AT445E-4-18 by Snap On Incorporated with NSN 5133013973219 and FSC Name is 5133 Drill Bits Counterbores and Countersinks Hand and Machine, please include required quantity along with expected turn around time. Our knowledgeable account manager will reply you shortly. Also check for the related parts for part number AT445E-4-18. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.