Drill bits and other rotary tools are held in a drill chuck, which is a specialised self-centering, three-jaw chuck with a capacity of 0.5 in (13 mm) or less and rarely greater than 1 in (25 mm). This style of chuck can be found on everything from high-end industrial machinery to budget-friendly hand and power drills for the home. Ball thrust bearings are used by some high-precision chucks to minimise closing friction and increase drilling torque. Super Chuck is one brand name for this type of chuck, though the term is often used generically in speech but never in catalogs. For drills with a diameter of less than 1 mm (0.039 in), a pin chuck is available to ensure a safe and secure grip. After inserting the drill into the pin chuck and tightening it, the pin chuck’s shaft can be inserted into the larger drill chuck for even more secure holding. It’s not just drills that use pin chucks; other high-speed rotary tools like die grinders and jig grinders do as well.
Best Drill Chucks
Tobacco Extract Extra-Rohm
The Rohm Extra, made by a company known for its quality German machining components, is a remarkable bargain for its ability to improve the precision of so many widely used hand tools, including those made by DeWalt and Milwaukee.
We’re on the Rohm Supra 13!
The Rohm Supra 13 is a high-quality tool that doesn’t break the bank thanks to its automated clamping mechanism, which raises pressure in direct proportion to the power provided by the drill to avoid slippage even under the most severe conditions.
Key Chum Power Hex
The Chum Power Hex Key has a greater range than many others, with bits measuring from 1/64 to 1/2 inch. As long as the right stall is used, it is a reliable and secure choice for rotary hammers that can withstand significant stress.
All Pro-Series Industrial Models
The All Industrial Pro-Series is not only a reasonably priced alternative, but it also contributes to a total run-out of a good press that is as little as 3/1000 of an inch. It is compatible with Jacobs-style mounts of size 3, and it can hold bits of up to 5/8 in diameter.
J.K. Llambrich 16
The Llambrich JK-16, built for a Morse arbour of size 2, is a rock-solid piece of machinery. Although it is expensive, it should survive for many years with correct installation and introduce almost no run-out.
In order to repair or replace damaged chucks on older Craftsman radial presses, a typical solution is to purchase a Pan300 JT33 chuck. In order to install the new unit, just remove the old one off the shaft and tap it in with a rubber mallet.
An Albrecht Masterpiece
Look into the Albrecht Classic if you just must have the finest. The R8 standard ensures that this model provides the highest level of accuracy and durability, satisfying even the most discerning customers.
The ProTechTrader Universal is an excellent replacement component for the typical light-duty drill, and it can be used with a wide variety of shanks. Its range of 0.8–10 mm is suitable for most domestic applications.
With the exception of Albrecht 70010,
The Albrecht 70010 is the go-to in professional environments that need the utmost accuracy. As evidence of its extreme precision, its maximum capacity is just 1/16 of an inch, and it costs hundreds of times more than comparable products.
Superior Accuracy Albrecht
The Albrecht High-Precision weighs in at about a pound and is made from a hardened steel alloy that is resistant to rust and corrosion, making it ideal for the most delicate of applications. Its high cost is justified by the fact that it is intended for business usage.
How To Use A Keyless Drill Chuck
Do you know the frustration of starting to drill a hole or put a screw only to have the bit fall out?
A keyless chuck’s ratcheting mechanism was developed by the product’s designers to avoid this very scenario. It’s common to see people out in the field, including ourselves, just hold the chuck and squeeze the trigger until the drill secures the bit. It works better for some than for others, but it doesn’t always secure the door.
The Following Works on Ratcheting Chucks
Hand-turning the chuck until the ratcheting sensation is felt is a necessary safety precaution.So, here’s how to get the most out of your keyless drill chuck:
- Just insert your preferred drill or driver bit into the chuck and crank it until the teeth catch (you can use the trigger to help if you prefer).
- Turn the chuck’s handwheel until you hear a ratcheting sound. And that’s it; it’s that easy!
The ratcheting mechanism, once engaged, should prevent your bit from falling out as often. And it might lessen the amount of teasing from your pals, too.
How to Change a Drill Chuck
How to Use an Allen Wrench to Replace a Keyless Drill Chuck
Taking off the chuck’s central screw. Open the chuck’s jaws as far as they will go. Most keyless chucks include a screw that secures it to the drill base at the chuck’s bottom. To remove the screw with a reverse thread, insert a screwdriver of the suitable size and spin it clockwise. Because thread-locking fluid is often used to coat the screw, this may take considerable effort.
Those of you whose models lack a screw may skip this.
- If the screw is fully jammed, you may use the methods outlined below to free it, and then you can try again.
- Simply drop an Allen wrench into the chuck. Get the biggest Allen wrench you can fit into the hole. As you turn the Allen wrench, the chuck will tighten and be held securely.
- Lower the transmission’s gear. As a result, there will be much less drag from the gears.
- Don’t be afraid to use a mallet on that Allen wrench. Put the Allen wrench in a horizontal position so it hangs over the end of your workbench and point the drill in that direction. You may use a wooden or rubber mallet to give the end of the Allen wrench a forceful downward hit. To remove the chuck from the drill, turn the Allen wrench counterclockwise and give it a good whack. Get in touch with the maker and find out whether the drill spindle threads are standard or reversed for absolute certainty. The drill casing might be damaged by a hard or crooked hit. Use little force at first then ramp up as needed. This is vital information, even if you’re simply attempting to unscrew a screw.
Disassemble the Drill and Replace the Chuck
It’s going to take some good old-fashioned manual labour to get the chuck out. To remove the chuck from the drill’s casing, first release its grip using the chuck key.
Altering the Drill Chuck
You should reapply thread-locking fluid to the screw (recommended). A drop of thread-locking fluid on the end of the screw prior to installing a new chuck is a good idea. Spread the liquid out evenly by rolling it on your finger.
It is possible that you may need to apply thread-locking fluid to the threads of the chuck where it screws onto the drill if your keyless chuck does not have a screw.
- Fix the new chuck in place. A new chuck may be put in place using the same instruments used to remove the old one for cleaning.
- Chucks typically have a threaded base that must be threaded onto a spindle.
- A chuck must be opened.
- Put in the Allen wrench and screw it down by hand.
- After screwing it in counterclockwise, it should be nice and tight.
Using an Impact Wrench to Replace a Keyless Drill Chuck
How to Swap Out a Drill Chuck
- Please use a hex socket in the chuck. If you need additional effort to loosen your chuck and the other methods haven’t worked, an impact wrench is your best bet.
- Put a hex socket in the chuck’s centre and screw it down securely. If your chuck has a central screw, you should unscrew it in a clockwise direction.
- Use your impact wrench to turn the hex socket clockwise. Connect the impact wrench to the hex socket and flip the switch to the reverse position.
- Start the impact wrench and use it in short bursts until the chuck comes free from the drill.
- Take apart by unscrewing the handle. Now that the chuck is halfway out, you may take it out entirely by hand.
Altering a Tapered Drill Chuck
How to Change a Drill Chuck
- Find out how big the spindle is by measuring it. The chuck of a keyed drill does not usually screw onto the drill. The chuck has a tapered end that fits onto a corresponding spindle. This spindle may be found by inspecting the space between the chuck base and the drill. Find its circumference.
- Invest in a chuck-ejection wedge. A two-pronged wedge of this quality would cost a lot more and have less use. Pick one with a space between the arms that is somewhat bigger than the spindle’s diameter but not much bigger.
- If time is of the essence, you may find an alternative approach towards the conclusion of this piece.
- Drop the wedge in the space between the chuck and the drill. Place the wedge’s two prongs around the spindle in this void.
- Drive the wedge in with a hammer. Strike the drill chuck with the wide end of the wedge until it breaks.
- To replace the chuck, use a new one that is tapered. Make that the tapered ends of the spindle and chuck are clean and free of oil. The chuck must be mounted on the spindle with the jaws fully retracted. To avoid scratching the chuck nose, a thin piece of wood is placed over it before it is tapped into place with a hammer.
Image Titled How to Change a Drill Chuck
Get rid of the whole spindle. In the absence of a wedge, spindle removal may be an option. However, you can’t get to the spindle below unless the chuck has a hole in the middle. Here’s the procedure:
- Completely loosen the chuck’s cap.
- Insert the chuck into a vice, with the spindle dangling freely below.
- Insert a metal punch into the midst of it.
- Beat the drill’s spindle loose with the metal punch.