Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and the Yahoo Answers website is now in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
Preventing a hole saw from jerking?
I've been using one for the past week for cutting 2" holes in aluminum/aluminum piping. 2.5" OD However you prefer the word to be pronounced. Anyways. I clamp the pipes down. I'm using a steel drill bit and a hole saw for steel. I'm still lost on learning why the drill just jerks and spins out with my hand holding it. Almost as if it will snap my wrist. I have now tried using force to stop it now. It cut through my glove and then got to the wrist today. I need tips. I come from no use of tools other than the drill. Jigsaw and circular saw. Not experienced at all. No one to teach me the basics. What do I need to learn, and practice to prevent this from happening?
3 Answers
- ?Lv 77 years agoFavorite Answer
It sounds like you have a high torque drill. Using such a large bit tends to send the torque back through your hands.
Drilling a tiny hole is easy for the drill and easy for your hand to hold the drill. The larger the drill gets the more its torque is sent back into your hands. With a 2 1/2 inch dia. drill, you ARE going to get a lot of shaking and kick back.
The right way to approach this is with a drill press. It CAN'T kick back because everything is solidly mounted. HOWEVER, it IS possible for the stock being drilled to come loose and whip around. I've done that with even 3/8 inch holes. Keep your hands / fingers away from that when it starts whipping about.
You MIGHT try a lower speed and not apply so much force when drilling with the saw portion of the hole saw. Force against torque gets an equal and opposite torque - in your hands.
Techniques? Other than go slower and not to be so aggressive, not much I can think of, other than tilting the saw so it is only sawing on one edge at a time. That will reduce the amount of kick back. Or it should anyway.
Hope this helps.
Happy Holidays.
'')
- ?Lv 77 years ago
hole saws have a tendency to what you describe. it is not you .
The handle on the drill is not very long and does not give you very much leverage against the torque of the motor.
You could make a long handle using a small diameter metal pipe or long piece of wood , this will give you more leverage. It could even very long as 2 or 3 feet long. Then the long " handle " could rest against your body , like your hip or waist .
I am not there , so you will have figure out how to attach the long " handle " . But you could use large hose clamps or even use " twine " or strong thick string , wrapped around the drill motor and long handle many , many dozens of times until it is securely fastened to the drill and drill handle.
. With this long handle , the torque of the motor will be transferred to your body and not just your wrist .
- MardukLv 77 years ago
Use cutting oil on the hole saw which will help it not grab as much and don't PRESS real hard, let the saw cut. People think the harder you press the faster it will go which is actually opposite of the real thing.
