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20906 - SAIT 7-Inch Type 27 A60S Depressed Center Cutting Wheel

Packaging: 25 in a pack
$8.16/ea $127.50/25 in a pack only $5.10/eaSave 37%

In stock

OVERVIEW

Precision Notching and Cutting for Professional Welders

When you are out in the field or in the shop, you need an abrasive wheel that can handle more than just a straight line. The SAIT 20906 7-inch Type 27 wheel is built for welders who need versatility. Unlike flat Type 1 wheels, the Type 27 depressed center shape allows you to get up close and personal with your work, making it perfect for flush cutting bolts, smoothing out root passes, or notching metal for fit-up. With a thickness of .090 inches, it is thin enough to slice through steel quickly but tough enough to handle the stress of notching without flexing dangerously.

The "A60S" rating on this wheel tells you everything you need to know about its performance. The "A" stands for Aluminum Oxide, the industry standard for cutting steel. The "60" grit ensures a clean cut with minimal burrs, reducing your cleanup time. Most importantly, the "S" indicates a hard bond. A harder bond means the wheel holds its shape longer and doesn't wear down prematurely, giving you more cuts per wheel. This is the wheel you grab when you want to finish the job without stopping five times to swap out your abrasives.

Whether you are prepping a joint or cutting stock to size, the SAIT 20906 delivers consistent results. It is designed to run smooth and true on your 7-inch angle grinder, minimizing vibration and operator fatigue. Don't settle for cheap wheels that shatter or disappear in minutes; upgrade to United Abrasives quality and feel the difference in your fabrication work.

Why Welders Choose This Wheel

  • Hard Bond Life: The S-grade bond resists wear, saving you money and time.
  • Versatile Shape: Depressed center allows for flush cuts and better access in tight corners.
  • Rigid Control: The .090" thickness provides stability for precise notching.
  • Clean Cuts: 60 grit leaves a smoother finish than coarser cutting wheels.
Additional Information
Brand:United Abrasives / SAIT
Diameter:7"
Thickness:090
Arbor In:7/8"
Grit:60
Used To Cut:Steel
Wheel Type:Type 27 Depressed Center
Material Application:Ferrous Metals, Steel
Grain Type:Aluminum Oxide
Bond Type:Hard Bond (S-Grade)
Max RPM:8500
Packaging Description:25 in a pack
Arbor (in):7/8

INCLUDED

  • 1 x SAIT 7" x .090" x 7/8" Type 27 A60S Cutting Wheel

APPLICATIONS

  • Notching structural steel
  • Cutting pipe and tubing
  • Flush cutting bolts and studs
  • Root pass cleaning in welding
  • General fabrication on ferrous metals

FAQ

Type 1 wheels are flat and used primarily for straight cutting. Type 27 wheels have a depressed center, allowing the locking nut to be recessed. This enables flush cutting and allows the wheel to be used for light notching and grinding at specific angles.

While Aluminum Oxide can cut stainless steel, this specific wheel is optimized for ferrous metals and mild steel. For stainless steel, it is often better to use a contaminant-free wheel (labeled for Stainless) to prevent potential corrosion or contamination of the weld zone.

A thickness of .090 inches is slightly less than 3/32". It is thicker than a standard .045" zip-style wheel, making it more rigid and suitable for notching or side-loading applications where a thinner wheel might flex or break, yet it is still thin enough to cut efficiently.

The SAIT 20906 7-inch wheel is typically rated for a maximum of 8,500 RPM. Always check the label on the actual wheel and ensure your grinder's speed does not exceed this rating.

The 'S' represents the hardness of the bond holding the abrasive grains together. 'S' is considered a hard bond, which means the wheel retains its grain longer, resulting in extended wheel life, though it may cut slightly slower than a softer bond.

No, Type 27 reinforced cutting/grinding wheels do not require a backing pad. They mount directly to the angle grinder using the appropriate flanges and locking nut.

This wheel is primarily designed for cutting and notching (.090" thickness). While Type 27 wheels can handle some side load, full face grinding is better suited for 1/4" thick grinding wheels to ensure safety and efficiency.