Spiral Flute Tap: 1-1/2-6 UNC, 4 Flutes, Modified Bottoming, 3B Class of Fit, Cobalt, Oxide Coated MPN:CU503210.5022

The spiral flute tap provides an efficient and smooth cutting action to eliminate damaged threads in UNC tapping applications. The modified bottoming type allows for starting threads from a single piece of material without having to change to another type of tap. Made from cobalt alloy, the tap exhibits high hardness for durability, strength and resistance to heat and wear even when tapping through difficult materials such as stainless steel, cast iron or aluminum alloys. Its 4 flute design reduces torque while promoting faster and more accurate cutting. With a class of fit (3B) of excellent fit and finish accuracy, it ensures smooth operation, reduced friction and wear in the threads for better long-term performance. It's available in various sizes from #1 to 6 and offers an oxide finish to protect against rust and corrosion.