Okie does make these coin type headspace gauges where you don't need to remove the extractor. And until September 30th they are selling the whole set of three, go, no-go, and field gauges for the price of two. When you place your order you will see a line for "COMPANY" on the page where you enter your shipping address. To get the special rate you must enter "END OF SUMMER SALE" in the COMPANY line before submitting the order. Pretty simple, right?