Huot 12100 Over & Under Reamer Index for Sizes 0.124" to 0.126" and 0.499" to 0.501" in 1/16" Increments Index holds 14 over and under reamers in sizes 0.124" to 0.126" and 0.499" to 0.501" in 1/16" increments Labeled storage holes for identification and organization Made of steel with an epoxy finish and has a snap-lock cover for durability and protection Made in USA