Cooling the drill bits while drilling?!

Question

I think that I need to cool down the masonary drill bits while I am digging in...I guess the same goes with the wood drill bits, do anybody know how? Should I just pour water over the bit or I need some kind of oil,etc?!tnx in advance!

Answer 1

You only need to do this whilst drilling metal I feel.

Answer 2

provided you do not force / push to hard on the drill then the bit should not overheat remember to keep releasing the pressure if drilling for a period of time

Answer 3

You need a better drill.A hammer drill for concrete.Water will not lubricate anything.Wood bits are also used without lubricate.Metal bits can use a little oil to prolong the life if the bit.

Answer 4

you can get machining coolant which you pour onto the bit while it works, look up CNC and lathe sites for guidance

Answer 5

not oil on masonary just water will do, but try going slower so you dont get it so hot

Answer 6

use a slow speed when using a masonary drill it shouldn't need cooling same goes for wood drills

Answer 7

Not with wood, but with metal you can use a oil/water mixture that not only cools the bit but also adds lubrication to the cutting process or just an a cutting type oil. On masonry, you can use water because the concrete mixture is a sand  component.

Answer 8

I just use a drop of oil occasionally...I hope it stops the bit from blunting quite so quickly...as well as acting as a cooling agent.

Answer 9

You only need the white coolant when drilling metals,high speed masonry or big bore masonry drills use water cooling.You may see the machines that drill large bore holes for round gate posts,these use water cooling as they are usually low speed drills.

Answer 10

Looking at what you are drilling will determine what type of drill you will be using, and use of a cooling fluid.

I drill at a very slow speed to lengthen the life of the drill bit. Hope this link will help you. Good Luck, and everything is different, and a learning experience.

Answer 11

First, I hope you are using carbide tipped masonry bits.I you are,there is no need to cool them.Change the speed on your drill to slower speed while pushing harder.If the rpm of the bit is too high it tends to overheat because of the increased friction.Make the bid work hard.That's what it is designed to do.Also on your drill use the drill/hammer mode instead of just the drill mode.This chips as well as drills the masonry helping it to dig in easier.Cutting solvents are used only with drilling steel to increase cutting while at the same time cooling the tool.If not done the tool can actually melt inside the hole becoming hard and brittle as glass.I worked with steel on the cnc for over 15 years and know my holes.When using cooling with carbide it will tend to make it brittle and it might break.Masonry bits are carbide tipped.

Answer 12

If this is home use the hammer drill is not worth the extra expense.

If any drill bit gets too hot it will lose its temper and wear out quickly.

No coolant is used on wood since the coolant would cause more problems than it's worth.  Just control the speed and force.

Water is used to cool the bits for masonary work and is needed since the friction is so high, or  you will have to buy a bit for each hole or two.

Most home metal projects can be done without coolant if you take it easy.  You could use water or cutting oil on steel, but water in this case is not worth the mess.  Aluminum is a great heat sink and coolant is not normaly needed.

Answer 13

Do the spit test.  If your drilling wood and you think your bit is getting hot, spit on it.  If it sizzles the stop drilling for a minute.  You can actually leave burn marks on the wood if you don't.  As far as a masonary bits....NO CLUE

Answer 14

Yu dont need to cool the masonary bit ,you only use water to stop the dust blowing about ,

Answer 15

Are you sure you haven`t got you drill in reverse?If not it sounds like you need some better quality bits,some of these sets you get from DIY stores are rubbish.