I cannot insert a bit - Black & Decker Drills

Inserting the bit should be the same on all versions of the Makita 3612 router. It does depend on the bit size. Press the shaft lock to keep the shaft from turning. I think the lock is close to the handle on one side of the router when you hold the router with the bit/collet up. For small shaft bits, insert the appropriate collet sleeve into the collet cone. Then insert the bit completely into the sleeve. For larger shaft bits, insert the bit completely into the cone. Use the wrench to tighten the collet nut securely. Unlock the shaft lock. Do not over-tighten or leave the bit loose in the collet cone/sleeve. Over-tightening can break the collet cone. Leaving it loose can result in the bit flying out of the collet cone. Either way, injuries can occur. To remove a bit, loosen the collet nut and then remove the bit (or bit and collet sleeve).

The manual is available on the product page: https://www.makitatools.com/products/details/3612 . The direct link to the manual is https://cdn.makitatools.com/apps/cms/doc/prod/361/df12a409-2bd0-48c3-aa38-d635a480a76e_3612_IM.pdf . See page 8.

I hope this helps.

Cindy Wells

Grasp the ring at the nose of the drill. It has knurling around it. Pull it forwards and insert an impact rated driver bit or hex shank drillbit. Let the bit slide into the recess until it bottoms out. Release the knurled ring. You should hear the little keeper bearings spring back into place. Your toolbit should now be captive so you can go to work.

both answers are wrong above.With the chuck end facing you make sure the chuck is shifted to the counterclockwise position. You can now insert the bit by lining up the slots on the end of the chuck with the hollowed out area of the bit shaft, not the grooves in the bit shaft. Now when you have the bit inserted, shift the chuck to clockwise to lock in the bit.

You should only need to push the bit in. If that does not work grasp the chuck and pull back towards the handle than insert the bit and release the chuck. You remove the bit by doing the same pulling the chuck back and taking the bit out

Typically, the end of the drill where the bit is inserted (called the 'chuck') rotates to loosen or tighten the arms holding the bit in place. Grasp the top of the drill with one hand and rotate the end the bit is inserted into counter-clockwise if the bit end is pointed towards you to loosen the arms and release the bit.

If it is an older drill it may have a 'key' that would look similar to end of a phillips screwdriver on a tee that can be inserted into where the chuck and the rest of the drill assembly meet and twisted to loosen the bit.

If neither of these work post what type of drill you are using as not all hand drills are the same. Hope this helps.

Insert sds bit into chuck with slots/slot matching slot in chuck while pulling back on the spring loaded nose. If the bit does not catch try turning/rotating bit to lock. When you release the nose, a pin will drop into the indention on bit and prevent it from falling out during use. Sometimes this pin will break or wear-out thus the bit will not catch. Before you insert the bit, look into chuck for retaining pin. Pulling back on the spring loaded chuck releases pressure on the pin and allows insertion of bit. Parts are available at www.toolpartsdirect.com

Hi,
A very strong magnet or a needle nose pliers...

heatman101

The bit should have one flat spot. There are several types of bits. the most common ones are SDS and Spline.

1. Align the flat of the bit with the yellow triangle and black hexagon on the side of the tool holder sleeve. Must pull back tool holder sleeve to insert bit fully.
2. Fully insert the bit shank into the chuck. If tool holder sleeve does not spring into original position, the bit is inserted incorrectly.

I will continue to do some more research on that particular model to find the particular bit type. Please provide a rating if this has been of any help. Good Luck and have a Great Day.

grasp the chuck and put drill in reverse position and pull trigger gently this will open chuck and re-insert bit do same in forward to tighten bit into chuck

You have, I presume, already locked the spindle and loosened the collet nut with the wrench, have you not?
Once the nut is loose, you should be able to remove it by spinning it off the threads by hand. Then insert the 6 mm collet cone into the collet,
carefully thread the collet nut back onto the collet, and tighten it with the bit in place.
Sometimes bits are a snug fit, especially into a new collet. If you have some fin sandpaper you can gently chamfer the very end of the bit where you first insert it into the collet, and this may help to insert it. If you have to, push a bit.
I have noticed that some companies tend to mill the shafts of their bits a little too close to the exact tolerance, or even oversize them slightly, and this can cause frustration when inserting their bits. In exceptional circumstances, I have resorted to polishing a couple of small bit shafts with very fine (600 grit or so) emory cloth, just to allow the bit to enter the collet. I would not recommend this with a new router collet, unless you have checked the bit with a micrometer and it is oversize. Odds are you just need to break things in a little.
The force need not be brutish, but you may need to use some force, yes.

If I've managed to answer your question or solve a problem, please take a moment to kindly rate this post....thanks!