Combined Tap and Drill, Size: 3.50 mm, Threads per inch: .60 mm, Thread type: Ground, Drill Size: .1181, Thread Length: 7/16 in., O.A.L.: 2 in., Made in USA. Designed to drill and tap thru hose in a single pass up to two times the tap diameter. Also can be used on multiple spindle heads with reversing mechanisms.
*Photos are for general reference of product. The photos are not specific to each size