* These hand adjustable reamers are manufactered from quality materials for durablity and long service life.
* An adjustable hand reamer can cover a small range of sizes.
* They are generally referenced by a letter which equates to a size range.
* The disposable blades slide along a tapered groove.
* The act of tightening and loosening the restraining nuts at each end varies the size that may be cut.
* The absence of any spiral in the flutes restricts them to light usage (minimal material removal per setting) as they have a tendency to chatter.
* They are also restricted to usage in unbroken holes
* This imperial set has a range from 15/32″ to 1-1/16″