Union Butterfield Chucking Reamer, Straight Shank, High Speed Steel, 8 Flutes, 0.562" Diameter, 0.436" Shank, 8.000" OAL

Slow Right Hand Spiral Flute, Right Hand Cut. Cuts with a smoother, chatter free action than straight flute reamers. Recommended for more difficult to ream materials, better surface finish requirements, applications with an interruption, and to aid in chip evacuation in blind holes. Designed for accurate machine reaming using all types of equipment and incorporating all other design features of the straight flute style.