OKAZAKI Hand Reamer HR0317 3.17 mm.

OKAZAKI Hand Reamer Model HR0317 Size 3.17 mm.
The OKAZAKI HR Series Model HR0317 is a high-quality hand reamer made from High Speed Steel (HSS). It is designed to finish pre-drilled holes to the highest precision at a diameter of 3.17 mm. (equivalent to 1/8 inch fractional size). The reamer removes chips and rough marks left by drilling to achieve accurate hole tolerances and a consistently smooth interior surface finish.
Feature
High Speed Steel (HSS): Made from industrial-grade high-speed steel, providing superior toughness, long-lasting edge retention, and excellent wear resistance.
Straight Flute Design: Straight flutes provide stable reaming, reduce vibration, and deliver a consistently smooth, fine surface finish throughout the hole depth.
Long Lead Taper: Extra-long lead taper at the tip aids self-centering when starting hand reaming, making it easy to keep the tool square to the workpiece even without machine guidance.
Square Drive Shank: The square end shank is designed to fit securely in a tap wrench, preventing slipping during torque transmission.
Application
Used for precision reaming of 3.17 mm. (1/8") pre-drilled holes to adjust hole size and surface quality to high-precision standards.
Ideal for machinery assembly, maintenance work, and installing precision-fit pins or dowels.
Supports multi-material use, such as mild steel, cast iron, aluminum, copper, and plastics.
Recommendation: Always rotate clockwise only, and use cutting lubricant to reduce heat and improve surface finish.
Specification
Model: HR0317
Diameter: 3.17 mm. (1/8")
Material: High Speed Steel (HSS)
Shank Type: Hand Reamer Shank (Straight shank with square end)
Flute type: Straight Flute
Country of origin: Japan