Hertel 72012701 Chucking Reamer 0.127 in Hss 4 Flute

Product Description

The HERTEL 72012701 is a straight-flute chucking reamer designed for precision hole finishing in metal workpieces. Built from high-speed steel (HSS) with a bright, uncoated finish, it delivers accurate sizing at 0.1270 inches diameter without specialized coatings that would add cost where unneeded. The straight-cylindrical shank seats securely in standard drill chucks or collet holders. With a 4-flute right-hand cutting geometry and a 7/8-inch flute length, this reamer removes minimal stock while producing a clean, dimensionally accurate bore. It is a standard-duty tool suited to machine shop, maintenance, and production environments where consistent hole quality is required.

This reamer is used in drilling and boring operations requiring close-tolerance hole finishing in steels, cast iron, aluminum, and similar machinable metals. The 0.1270-inch diameter fits applications that fall within the 0.1000 to 0.1499 inch diameter range. Its 3-1/2-inch overall length accommodates typical machine spindle clearances on knee mills, drill presses, and CNC machining centers. Machinists, tool-and-die makers, and maintenance technicians install this reamer as a standard step following rough drilling to bring holes to final size and finish.

Key Features

• 0.1270-inch reamer diameter for precise hole sizing within the 0.1000 to 0.1499 inch range
• High-speed steel (HSS) construction provides durability across a broad range of machinable materials
• 4-flute straight configuration promotes smooth cutting action and consistent surface finish
• Right-hand cutting direction compatible with standard machine spindle rotation
• Bright uncoated finish suitable for general-purpose reaming without specialty lubrication requirements
• Straight-cylindrical shank fits standard drill chucks and collet holders without adapters

Compatibility

Designed as a standard chucking reamer for use in drill presses, knee mills, and CNC machining centers accepting a straight-cylindrical shank tool with a 0.1270-inch cutting diameter.

Installation Notes

Installation is performed by machinists or maintenance technicians using standard machine tool practices. Secure the straight-cylindrical shank firmly in a drill chuck or collet holder before operation and verify runout is within acceptable tolerance before reaming. Always pre-drill the hole to the appropriate undersized diameter before introducing the reamer. Use an appropriate cutting fluid for the workpiece material to extend tool life and achieve the target surface finish.