"H" 15/16-1-1/16" High Speed Steel Adjustable Blade Reamer ~ Straight flute reamers should be used in thru-hole applications only. ~ Blades are adjusted by loosening one nut and tightening the other. ~ Each reamer expands to the next size. ~ Adjustable blades give the operator the ability to handle multiple hole sizes with a single tool, making them a good choice for users with low volume reaming needs. ~ Square end allows the user to turn the reamer by hand with an adjustable wrench or straight handle tap wrench. ~ Overall length is 9". ~ 6 blades. ~ Length of cut is 2.95".