Alvord Polk 01068 Chucking Reamer 0.157 in Hss 6 Flute

Product Description

The ALVORD POLK 01068 is a straight-shank chucking reamer designed to finish-ream drilled holes to a precise diameter of 0.157 inches. Built from high speed steel with a bright polished finish, it delivers controlled material removal and a smooth bore finish in ferrous and non-ferrous metals. The reamer features 6 right-hand spiral flutes with a tolerance of +0.0002 to -0.0000 inches, holding the bore tight to nominal size without overshooting. At 4 inches overall length with a 1-inch flute length, it fits standard drill press chucks and milling machine collets. Machinists and tool-room technicians use this type of reamer as a final sizing pass after rough drilling.

This chucking reamer is suited for precision hole finishing in machine shops, maintenance facilities, and production environments. The straight shank allows direct mounting in a drill chuck, collet, or floating reamer holder. It is appropriate for use on drill presses, milling machines, and lathes where repeatable bore sizing to wire gauge #22 equivalent diameter is required. Right-hand cutting direction pairs with standard right-hand spindle rotation. The bright finish reduces built-up edge on softer materials and makes wear inspection straightforward.

Key Features

• 0.157 inch (wire gauge #22) nominal diameter with +0.0002 to -0.0000 inch tolerance for accurate bore sizing
• 6 right-hand spiral flutes for smooth chip evacuation and reduced chatter
• High speed steel construction for durability across steel, aluminum, brass, and cast iron
• Bright polished finish minimizes friction and simplifies wear inspection
• Straight shank compatible with standard drill chucks and collet holders
• 4 inch overall length with 1 inch flute length suits typical through-hole and shallow blind-hole applications

Compatibility

Designed as a standard straight-shank chucking reamer for use in any machine tool spindle or chuck accepting a straight-shank tool of equivalent shank diameter.

Installation Notes

Chucking reamers are installed by qualified machinists in a drill press, lathe, or milling machine. Ensure the workpiece is securely fixtured and the spindle is at the correct RPM and feed rate for the material being reamed before engaging the cut. Always use appropriate cutting fluid to extend tool life and improve finish quality. Never rotate a reamer in reverse, as this will damage the cutting edges.