Reducing Adapters | McMaster-Carr

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Grinders for Bits and Burs

Handheld Power Drills

Acetic Acid (White Vinegar)

Acetic Acid (White Vinegar) (5% Concentration)

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Tube OD

15,579 Products

Fluid Handling

Pipe and Pipe Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases through your facility

5,557 products

Tube Fittings

Make threaded, push to connect, barbed, and other types of connections between lengths of tube

1,299 products

Hose and Hose Fittings

Flexible and stronger than tubing; often used to convey liquids and gases under pressure

337 products

Manifolds

Distribute air or fluid to multiple places from a single source; also called headers

637 products

Diverting Valves

Redirect flow between ports

2 products

Fastening and Joining

Thread Adapters

Join threads of a different type, size, and gender

3,611 products

Socket Adapters

Make your socket more versatile, from converting the drive to limiting torque

200 products

Sockets

Turn fasteners with an external drive style without slipping and damaging the drive

24 products

Electrical

Conduit and Conduit Fittings

Protect wiring from impact and the environment in runs indoors, outdoors, and underground

42 products

Raceway and Raceway Fittings

Route and guard wiring along indoor surfaces

5 products

Transformers

Raise or lower voltage to meet the needs of an individual circuit

237 products

Electrical Adapters

Change electrical connectors to another type, size, or gender

3 products

Power Transmission

Bore Reducers

Adapt the bore of a component to a smaller size for mounting on a shaft

31 products

Machinable Shaft Ends

Mill custom pulleys, threaded hubs, sprockets, collars, and sensor targets and mount them to shafts

56 products

Shaft Adapters

Increase or reduce your shaft's diameter to fit equipment, or replace damaged shaft ends

54 products

Shear Couplings

Sever the connection between shafts when there's too much torque to protect parts from breaking

21 products

Shaft Couplings

Connect two shafts to transfer rotary motion from one to the other

2,110 products

Compressed Air Regulator Manifolds

Use a single air supply to meet multiple pressure requirements

12 products

Rod Ends

Use with connecting rods to support loads and control steering, tensioning, or pivoting motion

6 products

Bearing Adapter Sleeves

Close gaps between your bearing and shaft for a tight fit

29 products

Facility and Grounds Maintenance

Dust Collectors

Extract sawdust, chips, and other particles from the air and contain them for disposal

6 products

Heating, Ventilation, and Air Conditioning

Duct and Fittings

Circulate air through HVAC systems using round, rectangular, and fabric duct

236 products

Duct Turning Vanes

Guide air smoothly around sharp bends in rectangular duct

4 products

Lubricating

Coolant Dispenser Hose and Fittings

Snap together and position to deliver coolant, oil, water, or air in any direction

7 products

Fabricating and Machining

Saw Blade Bushings

Shrink the diameter of your saw blade's arbor hole to fit your saw's arbor

7 products

Saw Blade Arbor Adapters

Convert a diamond arbor hole to a round arbor hole

1 product

Wheel Brush Arbor Hole Reducers

Adjust arbor hole size so it'll fit the shaft of your tool

9 products

Flap Wheel Arbor Hole Reducers

Reduce the arbor hole size on flap wheels so they'll fit the shaft of your tool

2 products