PFERD 45893 4-1/2″ x 7/8″ POLINOX Fibre-backing disc – Radial – PNL – Aluminum Oxide – 280 grit (5pk)

PFERD offers a wide range of coated and non-woven abrasive tools for face-down grinding, belt grinding, peripheral grinding, surface conditioning, polishing, and much more.

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Non-woven abrasive flaps with a fibreglass backer, for face-down finishing work. Densely-stacked flaps for long service life. The disc is designed for working on large surfaces with variable-speed angle grinders.

Materials that can be worked:

Aluminium	Hard non-ferrous metal	Steel materials with a hardness over 54 HRC
Brass	Hardened, heat-treated steels over 1,200 N/mm2 (over 38 HRC)	Steel, cast steel
Bronze	High-temperature-resistant materials	Steels up to 1,200 N/mm² (< 38 HRC)
Cast steel	Nickel-based alloys (e. g. Inconell and Hasteloy)	Thermoplastics
Cobalt-based alloys	Other non-ferrous metals	Titanium
Copper	Soft non-ferrous metal	Titanium alloys
Fibre-reinforced duroplastics (GRP, CRP)	Stainless steel (INOX)	Zinc

Applications:

Roughening

Deburring

Surface work

Cleaning

Structuring (matt finishing, brush matting and satin finishing)

Fine grinding in multiple steps

Drive Type:

Cordless angle grinder

Angle grinder

Specifications:

Diameter	4-1/2
Height	3/4
Grit size	280
Recom. RPM from	2500 RPM
Max. RPM	5300 RPM
Bore	7/8
Packing unit	5 pcs.
EDP number	45893

Related Products:

45891 – 4-1/2″ x 7/8″ POLINOX Fibre-backing disc Radial, PNL, Aluminum Oxide, 100 grit

45892 – 4-1/2″ x 7/8″ POLINOX Fibre-backing disc Radial – PNL – Aluminum Oxide – 180 grit