How Do I Know The Size Of My Allen Wrench?

How do I know the size of my Allen wrench? Most Allen wrenches have the size stamped clearly on the side of the tiny, angled tool. The inch or millimeter size may have rubbed off with use or may be entirely too small to read. In this case, an Allen wrench or hex key chart can make finding the right size for your socket head much easier.

What size is a 1/4 inch Allen wrench?

SAE Substitutes for MM

Imperial Hex Key Metric Hex Size
7/32″ 5.5 mm & 6 mm
1/4″ 7 mm
5/16 “ 8 mm
3/8″ 10 mm

Are all Allen wrenches the same size?

Allen wrenches come in both SAE fractional-inch sizes and in metric sizes.

What can I use if I don't have the right size Allen wrench?

Makeshift Tools

For smaller Allen wrench nuts, you could likely use a set of flat-tipped tweezers, or even the flat edge on a pair of finger nail clippers. There are numbers of bathroom items that can be used in such cases, and again it is just about being able to turn or spin this screw, nut, or bolt to get it loose.

What is the smallest Allen wrench size?

0.9 mm

This item 0.9 mm Short Arm Hex Key L-Wrench 2 Pack Small Metric Sizes (0.9mm) SEDY 7-Pieces Mini Metric Hex-L Key Allen Wrench, 0.7mm, 0.9mm, 1.27mm, 1.5mm, 2mm, 2.5mm, 3mm, Cr-V
Sold By JT Custom HEDE TOOLS
Item Dimensions 6 x 0.25 x 7 inches
Measurement System metric metric, inch

Related guide for How Do I Know The Size Of My Allen Wrench?


Is there a 2.25 mm Allen wrench?

Designed for the miniature fasteners this basic aluminum handle comes with a 2.25mm hex nut wrench #29212. The hex wrench is for hex nuts that measure 2.25mm across the flats of the hex material or across the Star corners. Please note we also carry wrenches for 2.0mm and 2.5mm hex material.


What size Allen wrench do I need for garbage disposal?

The garbage disposal unit should have come with an Allen wrench. However, if you can't find it, you will likely find success with a 1/4-inch Allen wrench from your toolbox. Insert the Allen wrench into the hexagonal-shaped hole under the unit.


Is hex key same as Allen wrench?

A hex key, also known as an Allen key or Allen wrench, is a small handheld tool that's used for for driving bolts and screws with a hexagonal socket. They are available in many different sizes, though they all have the same hexagonal-shaped tip.


What is the difference between an Allen wrench and a hex key?

This article is aimed to help you figure out the difference between an Allen wrench and a hex key. The short answer is “there is no difference”. Really, these two names can be used interchangeably.


What is a standard size Allen key?

Common SAE Hex Key Sizes

Adding to our precision sizes, the common SAE Allen wrench sizes are 1/16″, 5/64″, 3/32″, 7/64″, 1/8″, 9/64″, 5/32″, 3/16″, 7/32″, 1/4″, 5/16 “, & 3/8″.


What sizes do hex keys come in?

Hex key sizes include: SAE -. 028",. 035",. 050", 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 3/16", 7/32", 1/4", 5/16", and 3/8".


Why are hex key called Allen wrenches?

Originally named Allen Manufacturing Company, the business produced hexagonal set screws and wrenches to fasten them. The terms "Allen wrench" (American English) and "Allen key" (British English) are derived from the Allen brand name and refer to the generic product category "hex keys".


Where are Bondhus tools made?

Bondhus Corporation is located in Monticello, Minnesota - USA; about 40 minutes from Minneapolis. Bondhus employees are proud of our Company and the tools we make. Our Ball, Hex, and TORX® tools are made in our Monticello manufacturing facility, just across the street from the Mighty Mississippi River.


What is SAE measurement?

SAE stands for Society of Automotive Engineers. This form of measurement was used primarily on cars made in the USA. This is why more often than not if you're in the United States, you're most likely finding wrenches and sockets in SAE sizings. AE sockets are sized in inches and fractions of inches.


Is a Jam Buster wrench an Allen wrench?

The Jam-Buster is a hex wrench that rotates jammed plates inside. Allen wrenches that are 1/4 inch long save the expense of buying a new wrench.


How do you unclog a garbage disposal with a Allen wrench?


How do you get a stuck Allen wrench out of a garbage disposal?

  • Switch off the garbage disposal.
  • Insert the hex wrench into the hole and turn it to and fro until the blades are free to rotate.
  • Push the reset button into its original position.
  • Switch on the garbage disposal.

  • How much torque can you apply with an Allen wrench?

    On a little Allen key, you could probably apply a few pounds of force before things start to bend. On a 24" breaker bar, you can easily apply a steady 50 pounds or so to the end.


    What size Allen wrench does IKEA use?

    The Allen wrench bits you want are in sizes 3mm and 5mm. The smaller one, 3mm, is used the most with Ikea furniture, while the 5mm one is also common.


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