Hertel 72012156 Chucking Reamer 0.1215 in Hss 4 Flute

Product Description

The HERTEL 72012156 is a high-speed steel (HSS) chucking reamer designed to finish-ream drilled or bored holes to a precise diameter of 0.1215 inches. Built with four straight flutes and a right-hand cutting direction, it delivers a smooth, accurate bore finish in a single pass. The straight-cylindrical shank seats securely in a drill chuck or collet for reliable concentricity. With an overall length of 3.5 inches and a flute length of 0.875 inches, this reamer suits tight-clearance applications where controlled material removal and hole-size accuracy are critical. Machinists, tool-and-die workers, and maintenance technicians use this tool in both manual and CNC setups.

This chucking reamer is suited for finish-reaming small-diameter holes in metal components across general machining, maintenance, and repair operations. The 0.1215-inch diameter falls within the 0.1000 to 0.1499 inch reamer diameter range and is appropriate for production or jobsite work where close-tolerance hole sizing is required. It is sold individually with a minimum order quantity of one unit.

Key Features

• Precision diameter of 0.1215 inches for tight-tolerance finish reaming
• High-speed steel (HSS) construction provides wear resistance across common workpiece materials
• Four straight flutes with right-hand cutting direction for smooth material removal
• Bright/uncoated finish suitable for general-purpose machining applications
• Straight-cylindrical shank for secure seating in standard drill chucks or collets
• Compact overall length of 3.5 inches with a flute length of 0.875 inches

Compatibility

Designed as a general-purpose chucking reamer compatible with standard drill chucks and collet holders accepting a straight-cylindrical shank in the 0.1000 to 0.1499 inch diameter range.

Installation Notes

Chucking reamers are installed by machinists using a drill press, lathe, or CNC machining center. Ensure the workpiece is securely fixtured and the machine spindle is powered down before mounting or removing the tool. Use appropriate cutting fluid for the workpiece material to extend tool life and improve surface finish. Do not use a chucking reamer to remove excessive stock — pre-drill or bore the hole to within a few thousandths of final size before reaming.