These reamers create a tighter fit than standard reamer sizes. The reamer diameter accounts for the 0.001” undersized diameter rating. The shank diameter is slightly smaller than the reamer diameter.

Create a tighter fit than standard reamer diameters. For good performance on hard-to-machine materials, these reamers are cobalt steel. The reamer diameter accounts for the 0.001” undersized diameter rating. The shank diameter is slightly smaller than the reamer diameter.

Create a tighter fit than standard reamer diameters. These reamers are solid carbide for exceptional wear resistance and high accuracy in addition to excellent abrasion and heat resistance when cutting hard and abrasive materials. They require rigid tool holding to prevent breakage and are not for use with hand-held tools. The reamer diameter accounts for the 0.001” undersized diameter rating.

These reamers allow for a slightly tighter or looser fit than standard reamer diameters.

Straight-flute reamers are for general purpose cutting.

Spiral-flute reamers have a right-hand spiral and a right-hand cut. They pull chips upward as they cut, so they’re often used in blind holes. Spiral flutes create a smoother finish than straight flutes and work well in keyways and other applications with an interrupted cut.