4-1/2" x 7/8" T29 Zirconia High Density Flap Disc - Mixed Grit 10 Pack (FREEMIX)

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Product Specification

4-1/2" X 7/8" T29 ZIRCONIA HIGH DENSITY FLAP DISC - MIXED GRIT 10 PACK (FREEMIX)

Built for fabricators who want multiple grinding stages in one box, this 4-1/2" T29 zirconia high density mixed grit pack combines four useful grit levels with a true Jumbo flap-disc construction. Each disc uses more flaps and a thicker abrasive profile than a regular-density disc, giving you increased abrasive capacity while the self-sharpening zirconia grain continually exposes fresh cutting edges under the heat and pressure of metal grinding.

The angled T29 profile is designed to ergonomically approach flat work surfaces, making these discs the preferred shape for grinding down bead welds, blending welds, and performing controlled stock removal across flat material. The assortment lets you move from aggressive grinding through blending and finer surface refinement without buying separate full packs of every grit.

With three 40 grit, three 60 grit, three 80 grit, and one 120 grit disc, this 10-pack is weighted toward the grits most commonly used for stock removal and blending while still including a finer option for final refinement. Combined with high density/jumbo construction and durable zirconia grain, it is a practical shop pack for welding, fabrication, maintenance, and repair work.

Quantity: 10 Pieces

Mixed Grit Pack Includes:

• 3 × 40 Grit
• 3 × 60 Grit
• 3 × 80 Grit
• 1 × 120 Grit

Product Specifications

Product Features

• Mixed 10-pack covers aggressive grinding through finer surface refinement
• High Density / Jumbo construction with more flaps than regular-density flap discs
• Thicker abrasive profile provides more usable grinding material
• Self-sharpening zirconia grain continually exposes fresh cutting edges as the discs wear
• T29 angled face ergonomically approaches flat work surfaces
• Preferred profile for grinding down bead welds and blending flat surfaces
• Overlapping flap construction combines grinding, blending, and surface refinement
• X-weight polycotton cloth backing provides strong abrasive support
• Assortment reduces the need to purchase separate full packs of multiple grits

Materials & Applications

Best For:

• Carbon steel
• Structural steel
• Stainless steel
• Cast iron

Additional Materials:

• Titanium
• Nickel
• Wrought iron
• Copper
• Fiberglass
• Plastic
• Hard rubber
• Wood
• Stone

Common Applications:

• Grinding down bead welds
• Grinding and blending flat metal surfaces
• Heavy stock removal
• Weld cleanup and blending
• Deburring
• Surface preparation
• Progressive surface refinement
• General fabrication, maintenance, and repair work

The assortment gives you four working stages in one pack: 40 grit for aggressive material removal, 60 grit for general grinding, 80 grit for blending and refinement, and 120 grit for finer finishing work.

Machine Compatibility

Designed for compatible 4-1/2" to 5" angle grinders using a 7/8" mounting system.

For a Benchmark option, use the Benchmark Abrasives 4-1/2" corded angle grinder, which supports compatible 7/8" bore accessories.

Because High Density/Jumbo flap discs are thicker than regular-density discs, always confirm that the grinder's guard, flanges, and mounting hardware provide proper clearance before use. The grinder's operating speed must not exceed the flap disc's 13,300 RPM maximum.

Safety Tips

• Inspect each flap disc before use and do not use a damaged disc.
• Never exceed the maximum rated speed of 13,300 RPM.
• Confirm proper guard and mounting-hardware clearance for the thicker High Density construction.
• Use the proper grinder guard and compatible mounting hardware.
• Wear appropriate eye, hearing, respiratory, and hand protection.
• Secure the workpiece and maintain control of the grinder throughout use.
• Use only on grinders approved for the disc diameter and mounting configuration.
• Dry use only.