Klingspor 310899 A 30 M Special 4-1/2″ x 1/4″ x 7/8″ Depressed Center Grinding Disc

The Klingspor 310899 Kronenflex A 30 M Special grinding disc is a 4-1/2 inch x 1/4 inch x 7/8 inch Type 27 depressed center grinding wheel built for stainless steel and steel processing. It uses aluminum oxide grain and is rated for up to 13,300 RPM, making it a practical choice for weld cleanup, edge grinding, beveling, and burr removal in fabrication and maintenance work.

The Klingspor 310899 is a Kronenflex A 30 M Special grinding disc designed for general grinding work on stainless steel and steel. This wheel is part of Klingspor’s Special performance class and is intended for users who need solid stock removal, steady grinding action, and dependable service life in day-to-day shop and field work. The depressed center Type 27 profile fits common angle grinder applications where clearance and working angle matter during grinding.

This 4-1/2 inch disc measures 1/4 inch thick with a 7/8 inch arbor and is rated for a maximum speed of 13,300 RPM at 80 m/s. Klingspor positions the A 30 M Special as a high performance grinding disc for stainless steel and steel processing, including applications such as railing construction. It is a good fit for metal fabrication shops, maintenance departments, and welding operations that need a straightforward grinding wheel for smoothing welds, removing burrs, and preparing metal surfaces.

Klingspor Kronenflex 4-1/2″ x 1/4″ x 7/8″ Depressed Center Grinding Disc At a Glance

• Built for Stainless Steel and Steel: Designed for grinding tasks in stainless steel processing and steel fabrication.
• 4-1/2 Inch Type 27 Wheel: Fits many common angle grinders that accept 4-1/2 inch depressed center grinding discs.
• Aluminum Oxide Grain: Uses a proven abrasive grain for reliable grinding on ferrous metals.
• High Stock Removal: Designed for aggressive grinding and productive material removal.
• 13,300 RPM Maximum: Rated for high-speed grinder operation within the stated limits.
• 1/4 Inch Thick Disc: Well suited for grinding, edge beveling, and burr removal.
• Special Performance Class: Part of Klingspor’s Special class for demanding grinding work.
• Safety Focused Design: Manufactured to meet EN 12413 requirements and tested to oSa guidelines.

Quick Specs

• Brand: Klingspor
• Manufacturer Part Number: 310899
• UPC: 4014855160907
• Main Size: 4-1/2″ x 1/4″ x 7/8″
• Speed: 13,300 RPM max / 80 m/s
• Primary Operating Modes: Surface grinding, edge beveling, burr removal

Markets

• Metal Fabrication: Useful for grinding welds, cleaning edges, and preparing stainless and steel parts.
• Railing Construction: A listed application area for this disc series.
• Stainless Steel Processing Shops: Built for routine grinding on stainless steel components and assemblies.
• Maintenance Departments: Suitable for repair grinding on steel brackets, frames, and fixtures.
• Commercial Welding Shops: A practical option for daily grinding work where steady removal rate matters.
• Industrial Manufacturing: Fits production and maintenance environments using Type 27 grinding wheels.

For buyers who need a dependable 4-1/2 inch grinding disc for stainless steel and steel, the Klingspor 310899 offers a familiar size and a clear application focus. The 1/4 inch wheel thickness supports common grinding tasks such as weld smoothing, edge work, and burr removal, while the depressed center design works with standard grinder setups used across fabrication, maintenance, and welding jobs.

Klingspor positions the A 30 M Special for aggressive grinding with a practical balance between grinding performance and service life. That makes this wheel a good choice for professionals who want solid cutting action without moving into a more specialized abrasive. It is also a practical option for purchasing teams looking for a known industrial abrasive brand, standard 7/8 inch arbor sizing, and consistent fit across common 4-1/2 inch grinder platforms.

Klingspor 310899 Kronenflex A 30 M Special 4-1/2″ x 1/4″ x 7/8″ Depressed Center Grinding Disc Features

• A 30 M Special Performance Class: Built for demanding grinding work on stainless steel and steel.
• Kronenflex Product Line: Part of Klingspor’s bonded abrasive line for professional grinding applications.
• Aluminum Oxide Abrasive Grain: Supports consistent grinding performance on ferrous metals.
• Depressed Center Form: Type 27 profile provides working angle clearance during grinding.
• 80 m/s Operating Speed: Rated for high-speed operation within published limits.
• High Aggressiveness: Designed for strong attack and solid stock removal.
• Balanced Service Life: Intended to provide a practical relationship between cutting performance and disc life.
• Safety Compliance: Meets EN 12413 requirements and follows oSa safety guidelines.

Compatible Accessories / Works Well With

• Compatible 5 inch angle grinders that accept 7/8 inch arbor Type 27 depressed center grinding discs
• Guard and mounting hardware

Klingspor 310899 Kronenflex A 30 M Special 4-1/2″ x 1/4″ x 7/8″ Depressed Center Grinding Disc Includes

• (1) Klingspor 310899 Kronenflex A 30 M Special 4-1/2″ x 1/4″ x 7/8″ depressed center grinding disc

Klingspor 310899 Kronenflex A 30 M Special 4-1/2″ x 1/4″ x 7/8″ Depressed Center Grinding Disc Specifications

• Brand: Klingspor
• Manufacturer Part Number: 310899
• UPC: 4014855160907
• Product Type: Grinding disc
• Product Line or Series: Kronenflex A 30 M Special
• Wheel Type: Type 27 depressed center
• Diameter: 4-1/2 in.
• Thickness: 1/4 in.
• Bore / Arbor: 7/8 in.
• Abrasive Grain: Aluminum oxide
• Bonding Agent: Synthetic resin, fibre-reinforced
• Quality Class: Special
• Maximum Operating Speed: 80 m/s
• Maximum RPM: 13,300
• Weight: 0.34 lb
• Primary Materials: Stainless steel, steel
• Primary Applications: Stainless steel processing, railing construction
• Sales Unit: Each
• Box Quantity: 10 pieces

Why Customers Choose the Klingspor A 30 M 4-1/2″ x 1/4″ x 7/8″ Depressed Center Grinding Disc

Customers choose the Klingspor 310899 because it covers a common metal grinding need in a size that fits many standard angle grinders. The 4-1/2 inch diameter, 1/4 inch thickness, and 7/8 inch arbor make it easy to stock for fabrication, maintenance, and welding work. For shops working with stainless steel and steel, the A 30 M Special gives them a recognizable abrasive line with a clear application focus and a speed rating that matches everyday grinder use.

It also appeals to buyers looking for a practical grinding wheel that can handle weld cleanup, burr removal, and edge grinding while maintaining a solid balance between aggressiveness and service life. That combination helps crews stay productive while controlling consumable costs.