E200 Cobalt Machine Tap Bits. A range of cobalt metric pitch machine tap bits that meet stringent high-production machining demands due to significant resistance to wear and high temperatures. These tap bits have a short entry of 2-3 threads. The tap bit tolerance class is 6H, the cutting angle is 10° and the tap flutes are straight. Reinforced shank and shiny surface treatment. These excellent quality tap bits are ideal for tapping in blind or through-holes to depths up to two times their diameter. Standard: DIN 371