11-12 Adjustable Hand Reamers HCS,Reamers HCS 11-12 Adjustable Hand, 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,They are generally referenced by a letter which equates to a size range, Free Shipping and Free Returns Online fashion store Best Quality We carry all the best brands at great prices. Hand Reamers HCS 11-12 Adjustable.