Replacement expansion screw for ARB58, ARB618, ARB34, ARB34X58STEP, and ARB34X12STEP

#8-32 thread - 1-1/4" long  9/64" hex socket

DOES NOT FIT the EXM series of mandrels

Will also fit the chinese expanding arbors from places like Enco etc.  Check your thread size before ordering - but typically the #8-32 screw will fit both the 5/8 and 3/4 enco arbors.