Adjustable Hand Reamers H4 to H14 11 Pcs Set A I 15/32"- 1.1/2" 11.9 - 38.10 mm
Sizes: One Each Size H4 to H14. The blades are made of 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.