3M Flap Disc 577F, T29, 7 in x 7/8 in, 36 Diameter Thread Size – 7 in x 7/8 in Grit 36 Cubitron

3M Flap Disc 577F, T29, 7 in x 7/8 in, 36

3M Flap Disc 577F tackles the toughest high-pressure
metalworking applications and leaves a blended finish, all in a single step.
Our abrasive flap disc features fast-cutting alumina zirconia mineral on
durable polyester-backed flaps for extra cutting power, and long life on heavy
duty applications such as weld removal, sharp-edge work, and beveling. From
the Manufacturer The 3M™ Flap Disc 577F Type 29 disc combines grinding and
blending into a single step to tackle aggressive stock removal on a variety of
welds, coatings, and other metal fabrication applications and at the same time
produce a blended finish on the workpiece, offering labor cost savings on
heavy-duty jobs. The 577F abrasive flap disc features fast-cutting alumina
zirconia mineral on durable polyester-backed flaps for extra cutting power,
and long life on heavy duty applications such as weld removal, sharp-edge
work, and beveling. A grinding aid reduces grinding temperatures for processes
involving heat-sensitive alloys such as stainless steel, nickel alloys, and
titanium. Ideal for tough grinding applications where final finish is
important, the overlapping layers of the flaps continually wear away with use
to expose fresh abrasive mineral for a fast, consistent cut, while the
cushioning of the flaps creates a blended finish. Flap discs typically
generate a finish one grade finer than the disc is graded, reducing finishing
steps. Type 29 is angled for aggressive stock removal and fast cutting on both
flat and curved surfaces. Flap discs are used on a right angle grinder. For
attachment, 4-1/2 inch flap discs with a center hole require a flap disc
adapter nut, and the 7 inch discs require a flap disc holder (both sold
separately). Flap discs with a 4 1/2 inch diameter have a max RPM of 13,300,
and the 7 inch discs have a max RPM of 8,600.Flap discs are three-dimensional
grinding discs with overlapping layers of abrasive-coated, fiber-reinforced
flaps that fan out from a central hub. These flaps continually wear away with
use to expose fresh abrasive mineral for a fast, consistent cut. The one-step
alternative to bonded wheels and fiber discs, flap discs grind and finish in a
single step, making them a time and cost-saving solution in many typical
applications. Under normal conditions, flap discs will generate a finish that
is one grade finer than the finish of a fibre disc of the same grade. And,
because their overlapping construction allows more abrasive material to be
loaded onto the cutting surface, they far outlast typical discs. Flap discs
have the flexibility to easily follow curves and contours while delivering
less gouging and enhancing operator comfort. They are ideal for a wide range
of applications, including weld grinding, deburring, rust removal, edge
grinding, and weld seam blending. For more than a century, 3M has applied
innovation and technology to improving our customers’ lives and supporting
their business goals. Today the company, from its headquarters in St. Paul,
Minnesota, serves industrial and commercial customers and consumers in nearly
200 countries. Abrasive Systems products, including a complete line of coated
abrasives, microfinishing and microreplicated abrasives, and hardware
accessories, provide the finishing touch for almost any surface conditioning
application. The 3M brand, across thousands of products, represents
consistency, superior quality, and value.

Product Features

• Alumina zirconia mineral with a grinding aid provides more cutting power than aluminum oxide across all metal types
• Flaps combine grinding and blending into one step for time savings
• Heavyweight polyester-backed flaps provide longer life on high-pressure applications such as sharp-edge work and beveling
• Quick change disc simplifies disc changes