Hertel 72292113 Chucking Reamer Letter K Hss 6 Flute

Product Description

The HERTEL 72292113 is a straight-flute chucking reamer designed to finish-ream holes to a precise Letter K diameter of 0.2810 inches. Built from high-speed steel (HSS) with a bright, uncoated finish, it delivers clean, accurate bores in a wide range of ferrous and non-ferrous workpiece materials. The straight-cylindrical shank seats securely in a drill chuck or collet, making it a practical choice for manual and CNC drilling operations. With 6 flutes cutting in a right-hand direction, the tool produces smooth hole walls and consistent dimensional tolerances across production and maintenance applications.

This chucking reamer is suited for machine shop production, toolroom work, and maintenance repair operations where a reamed hole in the 0.2500 to 0.2999 inch diameter range is required. Its 1.5-inch flute length accommodates typical through-hole and shallow blind-hole reaming tasks. The 4.25-inch overall length provides adequate reach for standard workholding setups on lathes, mills, and drill presses. It is sized for use in applications where a Letter K finished bore is specified on engineering drawings or repair documentation.

Key Features

• Letter K diameter: 0.2810 inches, within the 0.2500 to 0.2999 inch range
• 6 straight flutes for smooth, consistent bore finish
• Right-hand cutting direction for standard spindle rotation
• High-speed steel (HSS) construction for durability across common workpiece materials
• Bright/uncoated finish suitable for use with cutting fluids
• Straight-cylindrical shank for direct chuck or collet mounting

Compatibility

Designed as a standard chucking reamer for use in drill presses, lathes, mills, and CNC machining centers where a straight-cylindrical shank and Letter K bore size are required.

Installation Notes

Installation and use should be performed by a qualified machinist. Secure the straight-cylindrical shank firmly in the chuck or collet before operation, and confirm runout is within acceptable limits before cutting. Always apply an appropriate cutting fluid for the workpiece material to extend tool life and improve surface finish. Power down and lock out the machine spindle before changing or inspecting the reamer.