Century Drill & Tool 4-40 National Coarse Carbon Steel Tap-Plug and #43 Wire Gauge Drill Bit

Tap-NPT And Drill Bit Combo Pack. National Pipe Thread Taps. Precision Cut Threads, Accurately Formed For Consistent, Exact Threading. Heat Treated And Tempered For File Hard Threads, And Longer, Useful Life. Designed For Hand Cutting Applications. National Pipe Thread Tap Sizes For Internal Threading On All Types Of Pipes. Wire Gauge Brite Drill Bits. Made From Feature Premium Grade High Speed Steel. Precision Ground Points. Designed To Operate In Stationary Or Portable Tools. General Purpose Drilling In Wood, Metal And Plastic. Numbered Drill Bits.