Metric Stones | McMaster-Carr

	Shape Shape

	Rectangle
	Square
	Round
	Triangle
	Contoured
	Knife
	Half Round
	Point
	Diamond
	Bevel
	Oval
	Wedge
	Barrette
	Crossing

	Grit Grit

	For Finish For Finish

	Abrasive Material Abrasive Material

Aluminum Oxide

Aluminum Oxide/Silicon
Carbide Blend

	Thickness Thickness

	Width Width

	Length Length

	For Use On For Use On

	Lubrication Lubrication

	For Sharpening For Sharpening

	Color Color

	Gray		White
	Brown		Orange
	Blue		Beige
	Off-White		Black
	Green		Gold
	Red

	Stone Thickness Stone Thickness

	Stone Shape Stone Shape

Rectangular

Round

	Stone Length Stone Length

1 5/8"

10"

11 1/2"

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Individual/Set Individual/Set

Individual

Set

	Stone Style Stone Style

Straight

Tapered

	For Blade Style For Blade Style

Straight

Curved

Serrated

	Stone Width Stone Width

	Stone Color Stone Color

	Dark Gray
	Gray

	Number of Grits Number of Grits

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1,078 Products

About Finishing

Smoothing and Polishing Stones

Maintain tools, molds, and dies. These stones can be used by hand or in power tools with a compatible holder.

Smoothing and Polishing Stone Sets

Each of these sets comes with four differently shaped stones.

Semiflexible and Long-Lasting
Smoothing and Polishing Stones

Strong and wear-resistant, these thin bonded-ceramic stones have some give when pressure is applied.

Fast-Cutting Smoothing Stones

Also known as Crystolon stones, these abrade quickly to create a smooth or extra-smooth finish.

Smoothing and Polishing
Stones for EDM Scale Removal

Remove surface scale left by the EDM (electrical discharge machining) process.

Smoothing and Polishing Stones
for Stainless Steel and Hard Metals

The abrasive is specially treated for use on high-grade mold steels such as P-20, H-13, and 420 stainless steel.

Smoothing and Polishing Stones
for Aluminum and Soft Metals

The abrasive is specially treated for use on aluminum, brass, bronze, and other soft metal molds and dies.

Sharpening Stones

Two-Grit Sharpening Stones

A different grit on each side enables multistep sharpening with one stone.

Single-Grit Sharpening Stones

Quickly sharpen straight-blade tools.

Three-Grit Sharpening Stones

Three separate grit surfaces enable multistep sharpening with one stone.

Three-Grit Sharpening Stones with Oil Reservoir

The reservoir in the base keeps the stone clean and oiled.

Sharpening Stone Sets

Sets include an assortment of sharpening stones in different grits.

Two-Grit Hand-Held Sharpening Stones

A different grit on each side enables multistep sharpening with one stone.

Single-Grit Hand-Held Sharpening Stones

Bench Diamond Sharpening Stone Sets

Bench Diamond Sharpening Stones

Hand-Held Diamond Sharpening Stones

Hand-Held Diamond Sharpening Stone Sets

Knife Sharpening Steels

Knife Edge-Straightening and Sharpening Steels

Diamond particles embedded in the steel sharpen while straightening knife edges.

Knife Edge-Straightening Steels

Align blade edges with these hand-held tools.

Sanding

No-Dust Sanding Sticks

Finish and polish metals without producing dust.

Multipurpose Sanding Sticks

The backing cushions the abrasive to prevent gouging your work surface.

Sanding Sticks for Aluminum,
Soft Metals, and Nonmetals

The rubber backing cushions the abrasive to prevent gouging your aluminum, soft metal, and nonmetal work surfaces.

Multipurpose Sanding Bricks

The abrasive in these blocks wears evenly to maintain a flat surface. They can be used to remove burrs from metal die fixtures and machine parts or to clean magnetic chucks.

Sanding Bricks for Masonry, Ceramics, and Composites

Belt Sanding Sticks

Access tight spots. These sticks are spring-loaded to hold a small sanding belt taut, but you can easily rotate the belt when it becomes worn.

Hand-Held Grinding Wheel Cleaners

Hand-Held Cleaning Sticks for Grinding Wheels

Also known as dressing sticks, these can be used to sharpen a variety of abrasive wheels.

Hand-Held Grinding Wheel Cleaners

Also known as hooded dressers, these cleaners reveal new layers of sharp abrasive and deflect flying chips.

Long-Life Hand-Held Single-Point
Grinding Wheel Cleaners

The single point on these cleaners removes more material than multiple-point cleaners.

Long-Life Hand-Held Multiple-Point
Grinding Wheel Cleaners

The larger face offers better control, while multiple points provide a finer finish than single-point cleaners.

Long-Life Hand-Held Replaceable
Single-Point Grinding Wheel Cleaners

Twist the knurled adjustment knob on these cleaners to advance the replaceable point.

Mounted Grinding Wheel Cleaners

Single-Point Mounted Cleaners
for Toolroom Grinding Wheels

A single point removes more material than cleaners with multiple points.

Multiple-Point Mounted Cleaners
for Toolroom Grinding Wheels

Furnished with multiple points, these clean faster and leave a more uniform finish than single-point cleaners.

Smooth-Finish Multiple-Point Mounted
Cleaners for Toolroom Grinding Wheels

A concentrated amount of diamond abrasive produces a finer finish than other multiple-point cleaners.

Toolroom Grinding Wheel
Cleaners for Rounded Shapes

Use to clean or create rounded shapes on the wheel surface.

Grinding Wheel Cleaners for Surface Grinders

Mount these cleaners to the T-slot of your surface grinder or secure them to a magnetic chuck.

Precision Truing Cleaners for Toolroom Grinding Wheels

Brake-Controlled Precision Truing
Cleaners for Toolroom Grinding Wheels

Cleaners maintain a consistent speed for minimal diamond loss. Use to reshape worn diamond and CBN grinding wheels.

Angle-Style Precision Truing Cleaners
for Toolroom Grinding Wheels

Mount these truing cleaners to a T-slot to reshape worn diamond and CBN grinding wheels.

Files for Hardened Metals, Masonry, Ceramics, and Glass

Integrated-Handle Rectangular Diamond Files

The wood handle provides a comfortable grip.

Flexible Rectangular Diamond Files

Flex these files to access hard-to-reach spots.

Rectangular Diamond Files

These are the hardest, longest-lasting files available, and are strong enough to file hard materials.

Thin-Face Rectangular Diamond Files

Thinner than standard diamond files, these are good for reaching into small slots and narrow spaces.

Diamond File Sets

File hard materials with these sets, which include the hardest, longest-lasting files available.

Thin-Face Diamond File Sets

Thinner than standard diamond files, these are good for reaching into small slots and narrow spaces.

Square Diamond Files

File slots, keyways, grooves, and corners with these four-sided tools.

Point Diamond Files

Get inside small holes and crevices.

Round Diamond Files

Good for filing holes and concave surfaces.

Triangular Diamond Files

With three filing surfaces, these files work in spots others can't.

Half-Round Diamond Files

Use on concave, convex, and flat surfaces.

Rectangular Carbide Files

Second only to diamond in hardness, these files last 100 times longer than standard files.

Integrated-Handle Rectangular Carbide Files

The plastic handle provides a comfortable grip.

Round Carbide Files

Good for filing holes and concave surfaces.

Half-Round Carbide Files

Use on concave, convex, and flat surfaces.

Electrical Contact Files

Pocket-Size Electrical Contact Files

A pen-shaped holder stores six files.

Thin-Face Electrical Contact Files

The spatula-like end lets you access contacts in tight spaces.

Flexible Electrical Contact Files

Bend and twist these files to clean contacts in hard-to-reach spots.

Needle Files for Hardened Metals, Ceramics, and Glass

Flexible Diamond Needle Files

Wire-thin and easy to bend, these files reach tight spots in delicate workpieces, yet they're strong enough to shape hard metal, such as titanium.

Diamond Needle Files

These narrow files are the hardest available, and are strong enough to file hard materials in small holes, grooves, and slots.

Diamond Needle File Sets

Use these extremely hard, long-lasting file sets to remove hard materials from small holes, grooves, and slots.

Carbide Needle Files

Reach into tight spots with the fine tips on these files. They last 100 times longer than standard files.

Carbide Needle File Sets

These file sets last 100 times longer than standard files. Small tips allow you to work in small spaces.

DC Electric Motor Commutator Tools

Commutator Cleaning Stones

Clean commutators by removing ridges, surface contaminants, and other imperfections. You can also use these stones to prepare new carbon brushes by contouring them to fit a commutator.

Commutator Resurfacer Kits

With a mix of stone finishes, this kit has everything you need to clean small commutators and contour new carbon brushes to fit a commutator.

Handle-Mount Commutator Resurfacers

Without taking a motor out of service, reach motor commutators to remove ridges, surface contaminants, and other imperfections. These resurfacers can also be used to prepare commutators for new carbon brushes.

About Finishing

Smoothing and Polishing Stones

Smoothing and Polishing Stones

Smoothing and Polishing Stone Sets

Semiflexible and Long-LastingSmoothing and Polishing Stones

Fast-Cutting Smoothing Stones

Smoothing and PolishingStones for EDM Scale Removal

Smoothing and Polishing Stonesfor Stainless Steel and Hard Metals

Smoothing and Polishing Stonesfor Aluminum and Soft Metals

Sharpening Stones

Two-Grit Sharpening Stones

Single-Grit Sharpening Stones

Three-Grit Sharpening Stones

Three-Grit Sharpening Stones with Oil Reservoir

Sharpening Stone Sets

Two-Grit Hand-Held Sharpening Stones

Single-Grit Hand-Held Sharpening Stones

Bench Diamond Sharpening Stone Sets

Bench Diamond Sharpening Stones

Hand-Held Diamond Sharpening Stones

Hand-Held Diamond Sharpening Stone Sets

Knife Sharpening Steels

Knife Edge-Straightening and Sharpening Steels

Knife Edge-Straightening Steels

Sanding

No-Dust Sanding Sticks

Multipurpose Sanding Sticks

Sanding Sticks for Aluminum,Soft Metals, and Nonmetals

Multipurpose Sanding Bricks

Sanding Bricks for Masonry, Ceramics, and Composites

Belt Sanding Sticks

Hand-Held Grinding Wheel Cleaners

Hand-Held Cleaning Sticks for Grinding Wheels

Hand-Held Grinding Wheel Cleaners

Long-Life Hand-Held Single-PointGrinding Wheel Cleaners

Long-Life Hand-Held Multiple-PointGrinding Wheel Cleaners

Long-Life Hand-Held ReplaceableSingle-Point Grinding Wheel Cleaners

Mounted Grinding Wheel Cleaners

Single-Point Mounted Cleanersfor Toolroom Grinding Wheels

Multiple-Point Mounted Cleanersfor Toolroom Grinding Wheels

Smooth-Finish Multiple-Point MountedCleaners for Toolroom Grinding Wheels

Toolroom Grinding WheelCleaners for Rounded Shapes

Grinding Wheel Cleaners for Surface Grinders

Precision Truing Cleaners for Toolroom Grinding Wheels

Brake-Controlled Precision TruingCleaners for Toolroom Grinding Wheels

Angle-Style Precision Truing Cleanersfor Toolroom Grinding Wheels

Files for Hardened Metals, Masonry, Ceramics, and Glass

Integrated-Handle Rectangular Diamond Files

Flexible Rectangular Diamond Files

Rectangular Diamond Files

Thin-Face Rectangular Diamond Files

Diamond File Sets

Thin-Face Diamond File Sets

Square Diamond Files

Point Diamond Files

Round Diamond Files

Triangular Diamond Files

Half-Round Diamond Files

Rectangular Carbide Files

Integrated-Handle Rectangular Carbide Files

Round Carbide Files

Half-Round Carbide Files

Electrical Contact Files

Pocket-Size Electrical Contact Files

Thin-Face Electrical Contact Files

Flexible Electrical Contact Files

Needle Files for Hardened Metals, Ceramics, and Glass

Flexible Diamond Needle Files

Diamond Needle Files

Diamond Needle File Sets

Carbide Needle Files

Carbide Needle File Sets

DC Electric Motor Commutator Tools

Commutator Cleaning Stones

Commutator Resurfacer Kits

Handle-Mount Commutator Resurfacers

Semiflexible and Long-Lasting
Smoothing and Polishing Stones

Smoothing and Polishing
Stones for EDM Scale Removal

Smoothing and Polishing Stones
for Stainless Steel and Hard Metals

Smoothing and Polishing Stones
for Aluminum and Soft Metals

Sanding Sticks for Aluminum,
Soft Metals, and Nonmetals

Long-Life Hand-Held Single-Point
Grinding Wheel Cleaners

Long-Life Hand-Held Multiple-Point
Grinding Wheel Cleaners

Long-Life Hand-Held Replaceable
Single-Point Grinding Wheel Cleaners

Single-Point Mounted Cleaners
for Toolroom Grinding Wheels

Multiple-Point Mounted Cleaners
for Toolroom Grinding Wheels

Smooth-Finish Multiple-Point Mounted
Cleaners for Toolroom Grinding Wheels

Toolroom Grinding Wheel
Cleaners for Rounded Shapes

Brake-Controlled Precision Truing
Cleaners for Toolroom Grinding Wheels

Angle-Style Precision Truing Cleaners
for Toolroom Grinding Wheels