Grizzly G7944 Drill Press Handle Knob

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Forum topic by WoodPiddler posted 11-07-2011 10:30 PM 5009 views 0 times favorited 8 replies Add to Favorites Watch
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2 posts in 2687 days

11-07-2011 10:30 PM

I have a two year old Grizzly G7944 drill press that up until now has not been used for very heavy duty drilling. Recently while drilling several 1 5/8” holes, using a Forstener bit, into a 1 1/2” wood block, two of the drill press handle knobs broke (came apart). The knobs are made with a threaded plastic insert inside a rubber knob that screws onto the steel handle (there are three handle knob sets). I have taken them apart and tried to epoxy the insert, but with no success. Grizzly says they have no complaints on this particular issue, but the knobs are on back-order. Really getting replacement knobs designed in the same way will not solve the problem. Any good suggestions would be appreciated. BTW this is my first forum post, so hopefully this is the correct posting place. Thanks!

-- - - Ray, Texas

8 replies so far

View Grandpa's profile


3259 posts in 2671 days

#1 posted 11-07-2011 11:18 PM

Bummer!! I have an old Taiwan drill press that is still going fine after about 30 years. Have you wiped the knobs with solvents or anything. IF this doesn’t work for you maybe you should try some knobs from another place. I have ordered some knobs from places that have worked well. They are usually either 1/4-20 NC or 5/16-18 NC.
check the threads before ordering. Good Luck

View Lee Barker's profile

Lee Barker

2170 posts in 2846 days

#2 posted 11-08-2011 12:05 AM

Power Transmission suppliers will have the knobs.

Or of you want to get a little foofy, just underbore some golfballs and thread them on. Might be kinda cool, actually.



-- " his brain, which is as dry as the remainder biscuit after a voyage, he hath strange places cramm'd with observation, the which he vents in mangled forms." --Shakespeare, "As You Like It"

View TheBirdMan's profile


21 posts in 2400 days

#3 posted 11-08-2011 12:11 AM

Ray, take one of the knobs down to Sears (either a main store or one of there many Parts & Service locations). Sears has sold hundreds of drill press models over the years and saying they have a huge parts distribution business is an understatement.

Before you go to the parts & service sears location make sure you know what the thread size is of the knob you have. Sears can search the thread size with “knob” in there data base and probably find you several models to choose from.

-- -- Pat, Colorado;

View Terry Ferguson's profile

Terry Ferguson

203 posts in 2663 days

#4 posted 11-08-2011 02:19 AM

You have gotten some useful replies already.
Another source for almost everything there is
would be McMaster Carr – search under round knobs
with internal threads. I often use Locktite thread locker
on my drill press knobs as they tend to unscrew during use.

-- Terry Ferguson, Bend Oregon

View mtenterprises's profile


933 posts in 2688 days

#5 posted 11-08-2011 03:58 PM

Buy a tap the right size and make some nice new wooden ones out of some exotic hardwood, MMMmmmmm Nice improovment.

-- See pictures on Flickr - And visit my Facebook page -

View Bill White's profile

Bill White

4929 posts in 3956 days

#6 posted 11-08-2011 07:35 PM

Those threads are probably metric.


View mchuray's profile


81 posts in 2994 days

#7 posted 11-09-2011 07:13 AM

Those sound like Harbor Freight knobs also. I’d see if HF has any.

View crank49's profile


4030 posts in 2966 days

#8 posted 11-09-2011 06:48 PM

Throw those knobs away. Get you some cheap golf balls. Drill holes in three of them to match the rod size on your drill press. Put some epoxy in the holes and drive them onto the rods. There, I fixed it.

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