ITEM: 0.138 Tap Shank Diam, 0.106 Tap Square Size, M3 Tap, #1 Tapping Adapter BILZ. MANUFACTURER: BILZ. BRAND: Bilz. MANUFACTURER PART: 21100017. 0.138 Tap Shank Diam, 0.106 Tap Square Size, M3 Tap, #1 Tapping Adapter 0.2756 Projection, 0.669 Tap Depth, 1.1221 OAL, 3/4 Shank OD, Through Coolant, Series WE 1 (MOQ1, Pkg Qty1)CATEGORIES: Maintenance, Repair and Operational (MRO) Supplies. Tapping Heads & Holders. Tapping Adapters & Adapter Sets. N/A. TOTAL RECYCLED CONTENT: 10.00%. POSTCONSUMER RECYCLED CONTENT: 1.00%. KEYWORDS: BilzTapping Heads & HoldersTapping Adapters & Adapter SetsTapping AdaptersN/A.