Sait 72238 Type 29 Flap Disc 36 Grit 4-1/2 Inches

Product Description

The SAIT 72238 is a Type 29 zirconia alumina flap disc rated for angle grinder use at up to 13,300 RPM. It measures 4-1/2 inches in diameter with a 7/8 inch center arbor hole and carries a 36 grit designation, placing it in the coarse range for aggressive stock removal. The plastic backing keeps the disc lightweight and provides consistent flex during use. Zirconia alumina abrasive delivers a self-sharpening cut that holds up well on hard metals and maintains cut rate longer than standard aluminum oxide. This disc is used by metal fabricators, welders, and industrial maintenance technicians who need fast, controlled material removal on ferrous and non-ferrous surfaces.

The SAIT 72238 is suited for grinding and blending operations on aluminum, mild steel, and stainless steel. It is part of the SAIT ENCORE PLUS series, designed for use on standard 4-1/2 inch angle grinders with a 7/8 inch arbor. The Type 29 conical geometry allows a lower grinding angle, which increases surface contact and improves stock removal rate compared to a flat Type 27 profile. This makes it a practical choice for weld seam removal, surface prep, and edge work in fabrication shops and field service environments.

Key Features

• Type 29 conical profile for lower grinding angle and increased surface contact
• 36 grit zirconia alumina abrasive for aggressive coarse stock removal
• Plastic backing provides flex and reduces disc weight during extended use
• Rated to 13,300 RPM for use on standard 4-1/2 inch angle grinders
• Compatible with aluminum, mild steel, and stainless steel applications
• Part of the SAIT ENCORE PLUS series

Compatibility

Designed for use on angle grinders with a 4-1/2 inch disc capacity and a 7/8 inch arbor. Suitable for material applications including aluminum, metal, and stainless steel as specified by the manufacturer.

Installation Notes

Installation is performed by metalworkers and fabricators using a standard angle grinder with a compatible 7/8 inch arbor flange set. Ensure the grinder is unplugged or the battery pack removed before mounting the disc. Verify the tool RPM rating meets or does not exceed the 13,300 RPM disc rating before operation. Inspect the disc for damage before each use and do not use a disc that shows cracks, tears, or delamination.