40 Grit Sanding Discs | McMaster-Carr

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Diameter

Grit

Mount Type

Quick-Change Connector

For Use On

Abrasive Material

For Use With

Grinders for Bits and Burs

Portable Disc Sanders

Stationary Disc Sanders

Disc Shape

Form

Material

Grit Rating

Abrasive Backing Material

Arbor Hole

Performance

Arbor Hole Diameter

For Finish

For Sanding

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

REACH

RoHS

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

EAR99

Grinding Wheel Designation

Type 27

Type 29

Arbor Hole Thread Size

5/8"-11

Manufacturer Equivalent Model

3M Roloc

3M TSM

Merit Power-Lock Type I

Norton Speed-Lok TR

Norton Speed-Lok TS

Norton TY Power-Lock Type I

Standard Abrasive SocAtt

X-Lock

Maximum Rotation Speed

Quick-Change Connection Type

X-Lock

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296 Products

Sanding Discs

Adhesive Back

Adhesive-Back Sanding Discs

Press onto sanding tools or backup pads for a hold that won’t slip

28 products

Clog-Resistant Adhesive-Back Sanding Discs

Spend more time sanding and less time replacing discs

17 products

Adhesive-Back Sanding Discs for Soft Metals, Plastic, and Rubber

Prevent clogging and smearing when sanding soft materials

7 products

Arbor Mount

Long-Life Arbor-Mount Flap Sanding Discs

Loaded with more abrasive than standard flap sanding discs to last 30-40% longer

56 products

Arbor-Mount Flap Sanding Discs

Overlapping flaps reveal new grit as you work for steady material removal and even finishes

44 products

Arbor-Mount Flap Sanding Discs for Stainless Steel and Hard Metals

Expose fresh grit as you sand hard metals for longer life than standard discs

13 products

Long-Life Arbor-Mount Flap Sanding Discs for Stainless Steel and Hard Metals

More abrasive than other flap discs for hard metals to last 30-40% longer

12 products

Aggressive-Removal Arbor-Mount Flap Sanding Discs

The aluminum backing plate handles heavy pressure

4 products

Arbor-Mount Flap Sanding Discs for Soft Metals, Plastic, and Rubber

Resist buildup from soft metals and nonmetals that would clog and prematurely wear other discs

5 products

Arbor-Mount Flap Sanding Discs for Inside Corner Welds

Smooth out welds in tight corners with discs that hit them at the perfect angle

8 products

Trimmable Arbor-Mount Flap Sanding Discs

Trim as the flaps wear down, so you don't have to replace the disc until all the abrasive is gone

4 products

Arbor-Mount Flap Sanding Discs for Corners

Angled-edge flaps reach farther into corners than discs with standard flaps

3 products

Cool-Sanding Arbor-Mount Flap Sanding Discs

Prevent overheating or discoloring work surfaces

7 products

Arbor-Mount Flap Sanding Discs for Corners on Stainless Steel and Hard Metals

Angled flaps with tough abrasive fit inside corners to remove material from hard metals

2 products

Long-Life Arbor-Mount Flap Sanding Discs for Soft Metals, Plastic, and Rubber

Work longer without changing discs when sanding soft metals and nonmetals

3 products

Cool-Sanding Arbor-Mount Flap Sanding Discs for Stainless Steel and Hard Metals

Remove material from hard metals without overheating or discoloring your work surface

8 products

Long-Life Trimmable Arbor-Mount Flap Sanding Discs

More abrasive flaps than other trimmable sanding discs to last longer

2 products

Cool-Sanding Arbor-Mount Flap Sanding Discs for Soft Metals, Plastic, and Rubber

Avoid overheating or discoloring soft metal and nonmetal workpieces

3 products

Trimmable Arbor-Mount Flap Sanding Discs for Stainless Steel and Hard Metals

Sand hard metals, trim the disc, and then sand some more

6 products

Quick-Change-Connector Mount

Quick-Change Sanding Discs

Swap out discs in seconds so you can get right back to work

37 products

Quick-Change Flap Sanding Discs

Control sanding pressure more easily than with standard quick-change discs

20 products

Quick-Change Sanding Discs for Soft Metals, Plastic, and Rubber

Prevent clogging and smearing when sanding soft materials

7 products

Quick-Change Sanding Disc Assortments

Tackle a range of sanding jobs

4 products

Quick-Change Flap Sanding Discs for Corners on Stainless Steel and Hard Metals

Angled-edge flaps reach farther into corners than discs with standard flaps

7 products

Quick-Change Flap Sanding Discs for Stainless Steel and Hard Metals

Overlapping flaps with sharp, durable abrasive create an even finish on hard metals

7 products

Clog-Resistant Quick-Change Flap Sanding Discs for Stainless Steel and Hard Metals

A slick coating on the flaps prevents buildup when sanding hard metals

7 products

Quick-Change Flap Sanding Discs for Inside Corner Welds

Sweep these discs into corners to hit welds at the perfect angle

2 products

Hook and Loop Mount

Hook and Loop Vacuum Sanding Discs for Stainless Steel and Hard Metals

Cut through hard metals faster than other discs and remove debris as you work

4 products