The 28 piece set is 3/32-1/2" by 64ths and 11/32".
They are both heat treated tempered tool steel for longer life.
Both sets have a black oxide finish.
Both sets are undersize by .0025".
Used for transferring of threaded, drilled and tapped holes.
Shipping Weight: 24.6 lbs
Many metalworking products contain metals that are included in
the latest Prop 65 warning. Exposure to the elements can be
harmful. May cause cancer and reproductive harm.
