Yato YT-28951 Hand Reamer 4.5 mm, High-Speed Steel (HSS), 112 mm Length

The Yato YT-28951 hand reamer is a precision-engineered tool designed for the accurate enlarging and finishing of pre-drilled holes in metal components. With a diameter of 4.5 mm and a total length of 112 mm, this tool ensures high dimensional accuracy and a smooth surface finish, which is critical for mechanical assemblies and metalworking projects. Constructed from high-speed steel (HSS), the reamer offers excellent hardness and heat resistance, maintaining its cutting edge even during demanding tasks.

Advantages

The primary advantage of this hand reamer is its ability to achieve tight tolerances that standard drill bits cannot provide. By using high-speed steel, the tool provides superior wear resistance and longevity, ensuring consistent performance over multiple uses. Its design allows for manual operation, providing the user with greater control and sensitivity during the finishing process, which helps prevent over-cutting and ensures a professional-grade result in various metal applications.

Suitable for

• Enlarging existing holes in metal parts
• Finishing holes to precise diameters
• Preparing holes for precision pins or fasteners
• General metalworking and mechanical repair tasks

When it may not be suitable

This tool is not intended for use with hardened steel or extremely abrasive materials, as these can cause premature dulling of the cutting edges. It is also not suitable for power-driven applications, as it is specifically designed for manual hand-reaming operations.

Key specifications

• Diameter: 4.5 mm
• Total length: 112 mm
• Material: High-Speed Steel (HSS)
• Operation type: Manual

How to use

To use the hand reamer, ensure the workpiece is securely clamped in a vise to prevent movement. Apply a suitable cutting oil to the reamer and the hole to reduce friction and improve the surface finish. Insert the reamer into the hole and rotate it steadily in a clockwise direction while applying light, consistent downward pressure. Do not rotate the reamer in reverse, as this can damage the cutting edges. Once the desired depth or diameter is achieved, carefully withdraw the tool while continuing to rotate it clockwise.

What to consider before purchase

• Verify that the 4.5 mm diameter matches your specific project requirements
• Ensure you have a compatible tap wrench or handle for manual operation
• Confirm the material of your workpiece is compatible with HSS tools

Usage recommendations

Always use a high-quality cutting lubricant during the reaming process to extend the life of the tool and achieve the smoothest possible finish. Clean the reamer thoroughly after each use and store it in a protective case to prevent damage to the precision cutting edges.