Milwaukee puzzle?

[revlo1]

Hi,
I have just bought a Milwaukee 950 K breaker/drill Combi. This is second hand, not new.
Looking at the front end 21mm hexagon tool holder I cannot possibly see how this can rotate to act as a drill, also I cannot see any switches to turn hammer chisel/drill function on/off. Much confused?? Help please.
Regards
Ken W

[UtahAV]

Hi revlo1,

You don't state where you are from so I will start from the beginning. The Milwaukee / Kango Model #950K is a hammer produced for the UK. I also see that it is available in Australia, I would assume it may be sold in parts of Europe as well. It is a combination hammer so it will both drill and chip. To drill it uses the very common SDS-Max bits. When chipping it uses 21mm K-hex points & chisels which are not used here in the US. An equivalent SDS-Max hammer for the US would use chisels and points that also had an SDS-Max mount. When drilling the round shank on the SDS-Max bit woill not make contact with the hex holder on the hammer. The chisels and points will contact the hex holder.

I hope this explains to you a bit about how the hammer works and I hope you were not sold this hammer for use in the USA as the chipping bits will be almost impossible to find here.

Thanks!

-UtahAV
-Mark

[revlo1]

Thanks Mark,
yes I'm in the UK, so hex chisels and points are no problem. I bought the Kango/Milwaukee 950K second hand and it came with no points, no drills and no instructions. Your explanation makes sense and I presume the SDS-Max drill is driven by a rotational portion higher up the drive shaft "behind the hex section". I've just today received a chisel point and the end of it above the hex is round and about 18 or 19 mm in diameter but no driveable locking slots etc. I guess the sds max drills are a similar size, I'll check on the web for more info on sds-max.
Regards from a white and cold UK, merry Christmas to you and yours.
Ken

[UtahAV]

You are exactly right Ken. The drive is located above the hex portion of the holder. The round, milled portion of the bit is smaller in diameter than the shank on the SDS-Max bit. It therefore fits in the same area as the SDS-Max bit but does not make contact with the drive splines.

Our landscape here in Utah is also covered with about 3" of new Christmas snow!

Merry Christmas!

-UtahAV
-Mark

[revlo1]

Hi Mark, happy new year.
You live in a very beautiful area. I once had occasion to drive from Las Vegas to Salt Lake City to visit the "Browning" factory in a place called Ogden,situated in "Weber Canyon". In January this was stunning! After the visit I had 7 days to kill before a trade show in Vegas so decided to head for the west coast and a couple of days in San Francisco. Then the screw up came, maybe it was related to driving on the right which caused the disorientation but I ended up going north of the great lake instead of south and ended up in Idaho at a place called Twin Falls. I remember crossing the "Snake River" in an attempt to get south back into Nevada at a town called Jackpot. Of course, this being January and me being thousands of feet above sea level a storm just had to come rolling in, with me on a road with no gas stations forever! I coasted down every hill in an attempt to make it back to civilization and not freeze to death! Finally made it to Jackpot runnin' on fumes, then on to Elko for a well earned nights rest. Next morning saw a place nestling in the foot of the mountains and decided to investigate, this was Reno and stayed for a whole week, never did make it to Frisco but a great experience.
Finally on to my question, my chisel point has arrived and am about to try out my new toy. Do I need, at any point to "grease" this machine?
Regards
Ken

[UtahAV]

Great story Ken! Out here in the Western US you do need to be careful with your gas. Gas stations can be hundreds of miles between as you almost learned the hard way. I do love living out here. I like being able to take just a short drive to find isolated wilderness. Lots of great spots to camp!

I am not familiar with your hammer specifically but most all modern rotary hammers will only need to be lubricated if the gearbox is opened for a repair. As for your new bit, you should put a small amount of grease on the shank of the bit before you mount it into the hammer. Typically the hammer will include a small tube of grease to do this. If not any light grease will work fine.

Thanks!

-UtahAV
-Mark