OKAZAKI Reamer HR1290 Size 12.9 mm.

OKAZAKI Reamer Model HR1290 Size 12.9 mm.
The OKAZAKI HR Series Model HR1290 is a high-quality hand reamer made from High Speed Steel (HSS) in accordance with Japanese industrial standards. Designed for the final finishing process of drilled holes to achieve a high-precision size of 12.9 mm, the reamer is precision ground to provide the smoothest surface finish and correct hole size discrepancies commonly caused by standard drill bits.
Feature
HSS Quality: Made from premium-grade HSS, offering excellent strength and wear resistance.
High Precision: Delivers accurate tolerances, ideal for high-precision assembly work.
Straight Flute: Straight cutting flutes provide a uniformly smooth hole surface and evacuate fine metal chips effectively.
Lead Taper: The tip features a slight lead taper to assist in smooth centering into the drilled hole.
Application
Used for precision reaming of pre-drilled holes to enlarge them to 12.9 mm.
Suitable for maintenance work, mechanical engineering, mold making, and precision fit assembly applications.
Compatible with various materials such as general steel, cast iron, aluminum, copper, and industrial plastics.
Recommendation: The HR (Hand Reamer) model is designed for use with a tap wrench for manual turning to provide the best cutting feel and precise control.
Specification
Model code: HR1290
Diameter: 12.9 mm.
Material: High Speed Steel (HSS)
Shank type: Straight Shank with square end for tap wrench
Flute type: Straight Flute
Country of origin: Japan