Adjustable Hand Reamer 7 Pcs HV - H3 , 1/4" - 15/32" Inch 6 Blades Best Quality
HV - 1/4" - 9/32" (6.35 - 7.14mm). H3 - 7/16" -15/32" (11.11 - 11.90mm). The blades are made up carbon steel for long life and can be adjusted by loosening one nut while tightening the other. They are used mostly for repair work in the field.