OKAZAKI SPMR1550 Spiral Flute Machine Reamer 15.5 mm.

OKAZAKI Reamer Model SPMR1550 Size 15.5 mm.
The OKAZAKI SPMR1550 is a premium-quality Spiral Flute Machine Reamer from Japan, crafted from high-speed steel (HSS) and specifically engineered for precision reaming of 15.5 mm holes. The SPMR series features a spiral flute design that optimizes chip evacuation and minimizes friction, making it ideal for through-hole applications demanding maximum dimensional accuracy and superior surface quality.
Feature
Spiral Flute Efficiency: The spiral flutes are designed to evacuate chips forward (for through holes), preventing chips from scratching the workpiece surface and reducing chip clogging in the cutting flutes.
Premium HSS Material: Made from select-grade HSS, offering high hardness, high heat resistance, and longer edge retention than conventional reamers.
Japanese Quality Standards: Manufactured under Japanese Industrial Standards (JIS), ensuring consistently high precision tolerances on every piece.
Ultra-Smooth Finish: Delivers an exceptionally smooth internal hole finish, reducing scratches and chatter during operation.
Standard Straight Shank: Standard straight round shank, strong and durable, providing precise concentric clamping with machine chucks.
Application
Used for precision reaming to adjust pre-drilled holes to a specific 15.5 mm. size (recommended pre-drilled pilot hole size of approximately 15.2 - 15.3 mm.).
Ideal for through holes, allowing the spiral flutes to perform at maximum efficiency in pushing chips forward.
Compatible with industrial machines such as CNC machines, milling machines, lathes, or high-precision drill presses.
Compatible materials: steel, cast iron, aluminum, copper, and other composite/alloy materials.
Recommendation: For the best surface finish and extended tool life, always use coolant or cutting oil during operation.
Specification
Brand: OKAZAKI (Made in Japan)
Model: SPMR1550 (Spiral Flute Machine Reamer)
Diameter: 15.5 mm.
Material: HSS (High Speed Steel)
Shank Type: Straight Shank (straight round shank)
Flute type: Spiral Flute