Cut Off Wheels 100 Pack 4.5 in Thin Metal Cutting Discs - Value Pack

Our review of these cut off wheels finds them best suited to tradespeople and DIYers who need a high-volume, low-cost supply of blades for routine metal cutting. The single biggest reason to buy is obvious: you get 100 thin, fast-cutting discs sized for 4.5 in angle grinders, which makes them a practical choice for jobs that demand speed and frequent wheel changes rather than ultra-long life. The review balances real-world performance - quick burr-free cuts in steel and stainless - with the realistic tradeoffs of thin wheels and variable longevity reported by users.

Key Features

• 100 pack: Provides a large quantity of wheels so users can replace discs often without hunting for spares, ideal for busy workshops.
• 4.5 in compatibility: Outer diameter and a 7/8 in arbor make these blades ready to fit the common 4.5 in angle grinder sizes for most cutting tasks.
• Proprietary aluminum oxide grain: Abrasive formulation is intended for fast cutting and extended service life compared with basic abrasive mixes.
• Double fiberglass reinforcement: Extra mesh layers increase safety and stability during high-speed operation up to 13,300 RPM.
• 0.045 in thin design: Skinny profile enables quicker, burr-free cuts and reduces material loss on tight cuts and pipe work.
• Versatile metal use: Designed for clean cutting on carbon steel, stainless steel, pipe, cast iron and other ferrous metals.

Who It's For

These cut off wheels suit metalworkers, fabricators, plumbers and renovators who go through discs regularly and value fast cutting and a steady supply. The 100-pack makes sense for job sites and small shops where replacing wheels between tasks is common and cost per disc matters.

Those who need the absolute longest-lasting industrial discs or who perform precision stainless weld prep that demands the very thinnest kerf with exceptional fracture resistance may want to consider premium or branded specialty wheels instead. Also, users who rarely cut metal might find a smaller pack more practical.

Pros & Cons

Pros

• High value for money with 100 discs, reducing downtime to source replacements.
• Thin 0.045 in profile gives fast, burr-free cuts and less material waste.
• Good cutting speed and compatibility with common 4.5 in angle grinders and 7/8 in arbors.
• Reinforced with double fiberglass mesh for better durability and safety at 13,300 RPM.

Cons

• Some users report variable longevity and occasional breakage, reflecting the tradeoff between thin kerf and wheel strength.
• Not a specialty premium blade for extreme heavy-duty or precision tasks where a higher-cost disc might last longer.

Specifications

Pack quantity	100 pieces
Outer diameter	4.5 in
Inner diameter (arbor)	7/8 in
Thickness	0.045 in
Max speed	13,300 RPM / 80 m/s
Abrasive material	Aluminum oxide grain
Reinforcement	Double fiberglass mesh

Our Verdict

For workshops and job sites that prioritize fast cutting and economical replacement, these 4.5 in cut off wheels represent strong value and dependable performance on common ferrous metals. They cut quickly and work well with standard 7/8 in arbors, but buyers should accept that thin, high-volume discs trade some longevity for speed and cost savings.

Frequently Asked Questions

Will these fit my 4.5 in angle grinder?
Yes, they are designed for 4.5 in grinders with a 7/8 in arbor and operate up to 13,300 RPM.

What metals can I cut with these discs?
They are intended for carbon steel, stainless steel, pipe, cast iron, copper and other ferrous metals.

Are they reinforced for safety?
Yes, each disc has double fiberglass mesh reinforcement to improve durability and safety during use.