Steel Cutting Disc 4.5"

Steel Cutting Disc 4.5″

This 4.5″ steel cutting disc is designed for high-performance metalworking, offering a balance of speed, durability, and safety for professional industrial use.

Technical Specifications

Feature	Details
Diameter	$4.5" (115mm)$
Thickness	$1/8" (3.0mm)$
Arbor/Bore Size	$7/8" (22.2mm)$
Material Application	Steel, Iron, and Ferrous Metals
Disc Type	Type 42 (Depressed Center Cutting Disc)
Specification Code	A30R-BF (Aluminum Oxide, Medium Grain, Hard Bond)
Maximum Speed	$13,300 RPM$
Max Peripheral Velocity	$80 m/s$
Reinforcement	Double-layered fiberglass mesh for safety

Product Overview

The SMT Professional Quality Steel Cutting Disc is engineered for demanding metal fabrication tasks. With its $3.0mm$ thickness, this disc provides enhanced stability and a longer service life compared to ultra-thin alternatives, making it ideal for cutting through thicker steel plates, pipes, and rebar.

Key Features

High-Grade Abrasives: Formulated with premium aluminum oxide ( $A$ ) for fast, clean cuts and minimal burr formation.
Depressed Center (Type 42): The offset hub design allows for better clearance during flush cutting or when working in tight angles.
Fiberglass Reinforced: Built with high-tensile fiberglass bonding (FB) to withstand high $RPM$ and resist shattering under heavy pressure.
Heat Resistance: Designed to dissipate heat effectively, reducing the risk of workpiece discoloration and extending the wheel’s life.

Safety & Usage Instructions

To ensure maximum performance and operator safety, please adhere to the following:

PPE Required: Always wear eye protection, ear muffs, heavy-duty gloves, and a dust mask.
Installation: Ensure the disc is properly seated on the $22.2mm$ spindle and that the grinder guard is securely in place.
RPM Match: Never exceed the maximum rated speed of $13,300 RPM$ .
Storage: Store in a dry, cool place to prevent moisture from affecting the resin bond.