Newport

Cut a slot into the screw head. Place a screwdriver in the slot and tap with a hammer in the counter-clockwise sense to loosen the bolt. Unscrew the bolt with the driver.

These types of Allen keys can be seen in lots of professional workshops. These are oversized L-wrench with a comfortable grip that gives them similar benefits as a T-handle.

Opticscompany

These instruments are essentially L-shaped wrenches that have six sides. They are utilized to drive hexagon-shaped recessed holes. Greek “hex” means “six”. Hence the name.

At the beginning of the 20th century, William G. Allen patented a cold drawing process for making hex socket set screws. Wrenches to turn these screws would make Allen famous. “Allen” is a registered trademark, however, even wrenches from other manufacturers are sometimes called Allen wrenches.

The tool is usually held and twisted by its long arm, creating a relatively large torque at the tip of the short arm; it can also be held by its short arm to access screws in difficult-to-reach locations and to turn screws faster at the expense of torque.

Hex keys are designated with a socket size and are manufactured with tight tolerances. As such, they are commonly sold in kits that include a variety of sizes. Key length typically increases with size, but not necessarily proportionally so.

Edmund

These are basic L-shaped Hex or Toque keys mounted on a key ring with a spring retaining clip. These key sets are very affordable and can be kept in a house or car for convenience. To use the long arm, you have to twist and pull the key from the retaining clip. To replace it, you need to push and twist the key.

Optical components

Variants on this design have the short end inserted in a transverse handle, which may contain multiple keys of varying sizes that can be folded into the handle when not in use.

This is a popular tool, mostly used in motorsport applications. Due to the T-handle, you can spin the wrench quickly, while allowing enough leverage in common usage. Beta 951 wrenches allow it to slide into a position to create an L-shaped tool. These are quickly becoming popular among bike mechanics.

These wrench sets are distinctive from other Hex sets available in the market. They have ball molded heads at tight edges, where L-formed wrenches can’t exactly reach.

This may require that you modify the Torx bit on a grinder. You can grind the sides off slightly or as in the picture below, you can grind off the tip to get the bit to fit tightly in the damaged bolt head.  This really works.

edmund中文

Hex keys are formed from a single piece of hard steel hexagonal rod having blunt ends that fit snugly into similarly-shaped screw sockets. The rods are bent to 90o, forming two arms of unequal length resembling an “L”.

These are mostly loved by bicyclists and motorbike riders. Unlike other Allen keys, it is nearly impossible to lose a folding Hex wrench, as they are enclosed in the handle. They are normally folded out at 90 degrees from the storage handle to give maximum torque.

I always have a set of Torx bits in my toolbox of hex head bolt troubles.  You need to find a Torx bit slightly larger than the bolt head size. Then you can drive the bit into the head of the bolt with a hammer for a super tight fit.

edmund读音

This is the standard Allen key and is easily found anywhere. Due to its L-shape, it can reach into tight spots and provide control when needed. If you are looking to get only one set, this would be a perfect option. There are many choices available in the market, though a 1.5-10mm is a good value purchase.

Ratcheting Hex drivers provide better speed in comparison to the traditional Allen wrenches. These tools are more dynamic, as they are used with screwdriver bits and even sockets. They are available in different varieties. The bits of Ratcheting Hex Drivers can be used in an electric drill driver. It is a popular choice among people working with rotor bolts.

Use a grinding/cutting disk, not a saw blade. Apply the rotating cutting disk gently, do not force or it will break. If this is a toughened steel or stainless-steel bolt (much tougher), it will be best to use a reinforced cutting disk. Use a dusk mask to avoid breathing the dusk from the disk!

This is very handy when low torque and tight clearance are the main factors on which you are working. This is best for adjusting lever and some disc brake levers. The most common size used in the market is 1.5-5mm.

edmund中国

Thorlabs

The problem usually comes from rounding out the hex head with the Allen wrench. It always seems like the wrenches are just not tight enough. If you don’t know how to deal with this, a small job can turn into a huge headache!  Here are some tips to help you prevent the problem in the first place and on how to deal with it, should it happen.

A hex key (also known as Allen key and Allen wrench) is a simple driver for screws or bolts that have a hexagonal recess, as opposed to the typical Phillips or flathead versions more commonly seen.

A flat sunk bolt with Allan’s head was torn out, the hex key had no grip and the sunk bolt could not be grasped with pliers. It was a fat bolt so drilling out would have been very difficult.

A torque wrench is an important part of any workshop, especially when working with delicate components. But it is definitely not a replacement for Hex wrench.

This high-quality 2/3" lens is suited for demanding machine vision applications at short working distances. When combined with the CMV 2000, IMX 249 and IMX 174 sensors increased vignetting can occur depending on the application.