DISCONTINUED ITEM
General's Fishtail Center Gage is a useful guide for grinding and setting thread cutting tools with a grinder or lathe. Made of hardened steel with a satin chrome finish, the Center Gage is graduated in 14ths, 20ths, 24ths and 32nds for the accurate measurement of threads per inch. The Center Gage also indicates double depths for use when determining the size of a tap drill.