# Revvstark 25-Pack 4.5-Inch Aluminum Oxide Grinding Wheels, Type 27

4.5-inch aluminum oxide grinding wheels for metal cleanup, rust removal, deburring, and polishing with a compatible angle grinder.

- [Original product page](https://www.ofertitastop.com/us/product/revvstark-25-inch-aluminum-oxide-grinding)
- [View offer](https://www.ofertitastop.com/us/visit/revvstark-25-inch-aluminum-oxide-grinding)
- Market: US
- Language: en-US
- Currency: USD
- Product updated: 2026-10-24T02:05:56.678Z
- Brand: Revvstark
- MPN: Grinding Discs-25
- SKU: ofertitastop-us-137998
- Category: Hardware > Tool Accessories > Grinder Accessories > Grinding Wheels & Points
- Source store: amazon US
- Active deal: Yes
- Price: 22.99 USD
- Previous price: 31.99 USD
- Discount: 28%
- Rating: 4.6 / 5
- Reviews: 232

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## Description

At 4.5 inches in diameter, these Revvstark Type 27 grinding wheels are sized for compatible angle grinders and metalworking tasks.

Aluminum oxide abrasive is suited to grinding metal surfaces and edges, with uses that include rust removal, deburring, cleaning, and polishing.

The 25-pack gives repair, maintenance, and workshop jobs a ready supply of discs. Each wheel has a depressed center and fiberglass-reinforced construction.

## Quick overview

These discs are designed for grinding rather than cutting. Their 1/4-inch thickness and 7/8-inch arbor hole define the key fit points, while the Type 27 depressed-center profile supports work across surfaces, contours, edges, and radii. Aluminum oxide makes them a practical choice for common metalworking jobs, including work on steel, stainless steel, aluminum, and copper.

The stated maximum rotational speed is 13,300 RPM. The reinforced construction combines aluminum oxide with a double layer of fiberglass mesh. Buyers describe the wheels as performing well and appreciate the value of the pack, those impressions can help inform a purchase, while the right disc choice still depends on the task and grinder setup.

## How it fits

Use these wheels with a compatible angle grinder. The 4.5-inch diameter, 7/8-inch arbor hole, and 1/4-inch thickness are the main dimensions to match against the tool and its accessories. The product is described as compatible with most standard angle grinders, but the spindle fit and grinder instructions should guide the final match.

The depressed center provides clearance around the mounting area and can help reach some work angles more easily. For a task focused on removing material, smoothing an edge, or cleaning a metal surface, a grinding wheel is the relevant format, a cutting wheel is intended for slicing through material instead. Match the grinder’s operating speed to the disc’s 13,300 RPM maximum before use.

## How to use it

Mount the disc on a compatible grinder according to the tool and wheel instructions, then use it for the intended metal-grinding task. It can suit workshop repairs such as removing rust from a metal part, deburring an edge after fabrication, or polishing a surface. The abrasive is listed for steel, stainless steel, aluminum, copper, and other metals.

Keep the work suited to grinding across surfaces, contours, edges, and radii. Use the grinder’s guard and appropriate personal protective equipment, and follow the tool manufacturer’s operating guidance. The pack contains 25 grinding discs, useful for keeping replacements available across ongoing maintenance or metalworking jobs.

## What to clarify

**Will these wheels fit a 4.5-inch angle grinder?** They are 4.5 inches in diameter and have a 7/8-inch arbor hole. Confirm that the grinder’s mounting arrangement matches those dimensions and follow its instructions.

**What materials can they grind?** The stated compatible materials include steel, stainless steel, aluminum, and copper, along with other metals. The aluminum oxide abrasive is intended for grinding applications such as cleaning, rust removal, deburring, and polishing.

**What speed rating should I consider?** The listed maximum rotational speed is 13,300 RPM. Use only with a grinder setup that follows the disc’s speed limit and the tool manufacturer’s guidance.

## Buying verdict

For metalworking and maintenance, this 25-pack brings together a familiar 4.5-inch format, aluminum oxide abrasive, a Type 27 depressed center, and fiberglass reinforcement. It makes sense if you need grinding discs for surface, edge, or contour work on compatible metals and want multiple replacements on hand for recurring workshop tasks.

## Images

![Revvstark 25-Pack 4.5-Inch Aluminum Oxide Grinding Wheels, Type 27 — 1](https://www.ofertitastop.com/i/-H3u2mB6A7BqkNsML7dWKhHIpZauw4xGfFha5BVb2tvaDT1ZanLEDLMLOlN5-oujataG9O0h37dzqUcyNv_cgbZdUWlBlExaWHdHWJ6-Xw7rVQ1lwcKCmQ.jpg)

![Revvstark 25-Pack 4.5-Inch Aluminum Oxide Grinding Wheels, Type 27 — 2](https://www.ofertitastop.com/i/lrusCQ-DFlHZolBFZUmBwq5VPSF0NJZalRn2sOs6RhMKCUzOWXEOaQhByyn-b2yR0eXz7GEKXjPU7wFwGkMJfHh6f_2Hdc_TtPiDNfsqGGV7aXVyenW62w.jpg)

![Revvstark 25-Pack 4.5-Inch Aluminum Oxide Grinding Wheels, Type 27 — 3](https://www.ofertitastop.com/i/rmjXerF9GMenJX9rPFVbwI4lwLojNSt9O0W_IhX7TTiWB65Bf6IKkX1PTUU5QqR7TkCbQCXZwfADc7k6zn-GI9_7-VIl6dO_kHrtoeKF6j1sDQ_oH_pZdw.jpg)

![Revvstark 25-Pack 4.5-Inch Aluminum Oxide Grinding Wheels, Type 27 — 4](https://www.ofertitastop.com/i/aeEUh4lec4rwAHxDIlOujCjfohwHmkJ5wv8SwyWnhCU4fhk4zb3wiCk_EeJctsnmvOAL1p9yL9UUNvpkeWTjBdGFEWbys8fG6YGhLks0QGG7WYi3628G4A.jpg)

![Revvstark 25-Pack 4.5-Inch Aluminum Oxide Grinding Wheels, Type 27 — 5](https://www.ofertitastop.com/i/s7hET4B7oW6vrK4RGKtL3THlvXtA1RC8Z8lJ7Jho16NsImlmsN-Gyztf55qX0mg7aCwCZ1YHAN0uJ6-vV5OzVfUVOSu1Y6NX0YI8jgH8obAArl_K-alsBg.jpg)