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4-1/2" x 7/8" Surface Conditioning Flap Discs

Brand: BHA - Black Hawk Abrasives

SKU:
SC45
Pack Size:
1 Disc
Size:
4-1/2"
Tool:
Angle Grinder
Material:
Surface Conditioning
stock:
30,80,120,270,280,500,1200
$5.99

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Product Description

4.5” x 7/8” Surface Conditioning Flap Discs by Black Hawk Abrasives

(SOLD INDIVIDUALLY)

Two classics staples combined! The versatility and reliability of a flap disc now with the surface preparation capabilities of surface conditioning sanding pads. 4.5” Inch Surface Conditioning Flap Discs by Black Hawk Abrasives are made from premium nylon webbing infused with aluminum oxide grains, adhered in an overlapping, flap pattern onto a strong fiberglass backing. These discs provide the same blending, deburring and cleaning ability of a surface conditioning discs but now with the added benefit of longer life and more consistent finishes provided by the flap disc construction. As the nylon material wares down, new material is revealed allowing for more consistent results with less down time to switch discs. These flap discs will not only offer better results than standard surface conditioning discs but increase operator efficiency and decrease operator fatigue. 4.5” x 7/8” scotch brite surface conditioning flap discs are perfect for use on steel as well as stainless steel and come in 3 variations of coarseness: Fine - Blue, Medium - Maroon/Red, and Coarse - Brown. Additionally, these discs attach right to a standard angle grinder without the need of any backing pad. Finally, each disc is designed with a T29 (conical) shape for optimal surface contact during use. 

Available Variations:

  • Fine (280 - 360 Grit) - Blue

  • Medium (120 - 180 Grit) - Maroon

  • Coarse (60 - 80 Grit) - Brown

Product Features:
•    Premium nylon webbing surface conditioning material
•    Strong fiberglass backing
•    T29 Conical shape for most contact during use

Benefits of Surface Conditioning Flap Discs:
•    Surface conditioning flap discs last 5 times longer than the flat discs.
•    Surface conditioning flap discs provide a more consistent finish than discs.
•    Surface conditioning flap discs do not require backing pad and can be used on a standard 4.5" angle grinder.

Works well on the following materials:
•   Stainless Steel
•    Standard or Alloyed Steel
•    Non-Ferrous Metals and Alloys
•    Plastic
•    Fiberglass

Applications:
•    Grinding, blending, finishing
•    Deburring
•    Deflashing
•    Edge chamfering
•    Stock removal

Specs:
•    Type 29 - Conical
•    Diameter = 4.5”
•    Arbor Size = 7/8"
•    Max RPM = 13300
•    Material = Non-Woven
•    Used on an angle grinder

Product Reviews

Customer Reviews
4.9 Based on 34 Reviews
5 ★
94% 
32
4 ★
6% 
2
3 ★
0% 
0
2 ★
0% 
0
1 ★
0% 
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Filter Reviews:
LW
05/15/2025
larry w.
United States

Automotive reconditioning

I ordered the flap disc bundle, because I was restoring a old car. They work great for removing old paint and rust without marring up the frame or body panels in preparation for new paint i like this it worked great for what I was trying to accomplishproduct.

JS
04/07/2025
JASON S.
United States

Finishing product fabrication

Appreciate the grit choice as these speed the step process along quickly. Good durability when used properly.

J
08/25/2024
Jay
United States

Nice handling, works well, lasts very well.

I'm still figuring out where to use the different sorts of prep wheels optimally, I find that these have a tiny bit of flex to them which is very helpful in some circumstances, compared to say, a regular blue prep wheel (nonstructured). I was actually using this one (blue/fine) to strip varnish off wood, which works surprisingly well. I discovered that you can unload the varnish from the disc by tapping the running disc on a metal grate. Anyway, I like them, so far. I tend to lean towards the blue grit.

JN
06/15/2024
John N.
United States

Best Customer Service

I ordered the wrong parts. My fault. Empire customer is fast, accurate, pleasant and very helpful. This is now my go-to place.

RM
02/10/2024
Ronald M.
United States

flap wheels.

I did not use them yet. But they look good.

JC
11/08/2023
James C.
United States

Perfect

Perfect for my ‘57 Feathercraft aluminum boat.

NB
06/04/2023
Nancy B.
United States

Haven't used them yet

Not ready for them

KC
05/09/2023
Kevin C.
United States

Polishing Aluminum Intake and Valve Covers

I recently tackled the distasteful task of re-polishing some aluminum pieces from a 90' 5.0L Mustang. I always knew of sandpaper flap discs but was introduced to 3M pad discs in a couple grits. They were amazing! Super effective and easy to use. I was also floored by how fast they arrived cross-country from NJ to Seattle.

CY
02/28/2023
Clifton Y.
United States

Exactly as advertised

Great service and quick delivery

NB
02/10/2023
Nancy B.
United States

they were ok

It was good, but needs to last a little longer. It seemed to fade quick on doing the job I wanted

HL
02/02/2023
Harold L.
United States

Red and blue flap discs

We used the discs to refinish stainless steel handrails and ladder in a swimming pool. They worked great and made the stainless look like new.

ES
01/12/2023
Edwin S.
United States

quality products at a good price

my experience was great will buy from you again and again

JW
10/11/2022
Jason W.
United States

Similar Results- half the cost

Been using a very similar wheel made by Standard abrasives for years. I've also been paying 2-3x the price of these. Made it a pint to try them out. Couldn't be happier and they actually last a little longer I think.

Empire Abrasives 4-1/2" x 7/8" Surface Conditioning Flap Discs Review
TC
08/22/2022
TIM C.
United States

Very Happy!

Parts worked perfectly! Very satisfied with the quality and the price. A pleasure to work with you!

DH
06/20/2022
Donald H.
United States

Great prep disks

These are great disks. I got the coarse and medium and they were just what I needed. Empire has good stuff, I just completed a nice kit for the shop and I am getting great feedback from everyone.