Value Collection PLMSC13131 Flap Disc 36 Grit Type 29

Product Description

The VALUE COLLECTION PLMSC13131 is a Type 29 zirconia alumina flap disc designed for aggressive material removal on steel and stainless steel surfaces. The disc measures 4.5 inches in diameter with a 5/8-11 threaded arbor hole for direct mounting to standard angle grinders. At 36 grit, it falls in the very coarse grade range, making it well suited for weld blending, surface conditioning, and heavy stock removal. The high-density poly-cotton backing provides consistent abrasive exposure as the flaps wear, extending usable disc life through a full range of grinding and finishing tasks.

This flap disc is used in fabrication shops, field welding operations, and maintenance environments where rapid surface prep on ferrous and stainless steel is required. The Type 29 conical shape presents the abrasive at an angle, concentrating cutting action along the disc face and improving performance on flat or contoured workpieces. It is a standard consumable for metal fabricators, pipefitters, ironworkers, and general trade professionals running 4.5-inch angle grinders.

Key Features

• Type 29 conical flap disc geometry for aggressive flat and contoured surface grinding
• 36 grit very coarse zirconia alumina abrasive for rapid stock removal
• 5/8-11 threaded arbor hole fits standard angle grinder spindles directly
• High-density flap configuration extends disc life and maintains consistent cut rate
• Poly-cotton backing balances flexibility and support across the abrasive surface
• Rated for use on steels and stainless steel substrates

Compatibility

Designed for use with 4.5-inch angle grinders equipped with a 5/8-11 spindle thread. Suitable for material removal and surface preparation on carbon steel and stainless steel.

Installation Notes

Flap discs are installed and removed by qualified users following the grinder manufacturer's guard and spindle speed requirements. Confirm the grinder's maximum RPM rating meets or exceeds the disc's rated speed before mounting. Always power down and disconnect the grinder before changing discs. Wear appropriate PPE including eye protection and gloves during disc changes and grinding operations.