375".355-0. ~ Runout is less than or equal to 5 Micron. ~ The SK slim collet system features an 8° taper angle versus the 16° taper for ER type collets.
~ Square end allows the user to turn the reamer by hand with an adjustable wrench or straight handle tap wrench. ~ Overall length is 14". ~ Ends are center drilled so blades can be sharpened in place.