Hertel 45676913 Chucking Reamer 0.4690 in Solid Carbide

Product Description

The HERTEL 45676913 is a solid carbide chucking reamer designed for precision hole finishing in metalworking and machining applications. With a 0.4690 inch cutting diameter and a 4 inch overall length, this reamer delivers tight tolerances and consistent surface finish in through-holes and blind holes alike. The straight-cylindrical shank provides secure, concentric holding in drill chucks and collet holders. Six straight flutes with a right-hand cutting direction remove material efficiently while maintaining dimensional accuracy. The bright, uncoated carbide construction suits a wide range of materials where coatings are not required.

This chucking reamer is suited for use in CNC machining centers, manual mills, and drill presses across production and job-shop environments. It is sized within the 0.4000 to 0.4999 inch diameter range and is appropriate for finishing pre-drilled or bored holes to close tolerance. Machinists, tool-and-die makers, and general machine shop technicians are the primary users. The straight flute geometry works well in materials that do not require spiral flute chip evacuation, such as cast iron, brass, and certain steels.

Key Features

• 0.4690 inch cutting diameter for precise hole sizing within the 0.4000 to 0.4999 inch range
• Solid carbide construction provides rigidity and wear resistance over high-production cycles
• Six straight flutes with right-hand cutting direction for smooth, consistent material removal
• 1-3/8 inch flute length accommodates typical through-hole and shallow blind-hole depths
• Straight-cylindrical shank for straightforward chuck or collet mounting
• Bright, uncoated finish — no coating buildup to affect dimensional tolerance

Compatibility

Designed as a standard chucking reamer for use in drill chucks, ER collet holders, and similar straight-shank toolholding systems on CNC and manual machine tools requiring a 0.4690 inch finished hole diameter.

Installation Notes

Chucking reamers should be installed by qualified machinists following standard toolholding procedures. Ensure the machine spindle is fully stopped and locked out before mounting or removing the tool. Secure the shank with sufficient clamping force to prevent slippage but avoid overtightening collet nuts beyond manufacturer toolholder specifications. Always pre-drill or bore the hole to the appropriate undersize before reaming, and use cutting fluid compatible with the workpiece material to extend tool life and improve surface finish.