Please fill out the form below for Bit Forstner and get a quote for part number 42930 by Irwin Industrial Tool Company with NSN 5133001424982 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 42930. ASAP Aerospace distributes nose to tail NSN components, sub-assemblies, and assemblies for the aerospace and aviation industry.