1 1/4 in. Knife Tip Dimensions = 6.60mm (0.25") For use with the PS-90. 1/4 in. Knife Tip P/N 1121-0402-P1 NSN 3439-01-376-8024 Price $20.37 Quantity Add to cart Find a Distributor Inquiry Overview Works With Compatible Products Works With PS-90 Universal Soldering Iron (Intelliheat) 6010-0150-P1