bench top drill press, am I going to break it?

I've got access to an older bench top drill press, I have to bore a 41/64 hole 16 times, and use a 1" 90* countersink on 8 holes, the holes have to be about 1.5" deep and the counter bore must be .5" deep. am i going to overload this thing?

 

Not if you have sharp drill bits and bores and take your time.

 

drill really slow and use alot of oil .

 

Make sure your drill is set to its slowest speed.
You want a speed less than 500 rpm. Use oil.
Matt

 

k will do, its my girls grandmas press, she will kill me if i break it.. 500rpm got it cutting oil.. gotta get some...

 

Depends on the quality of the press. I have already done more and harder with that with mine, and it has not even whimpered. Who knows what it was doing before I got it, as it was #1 off the assembly line at the Walker-Turner plant, in 1947. Use lots of oil.

 

Take your time, oil oil!!

 

You are going to want it even slower than 500 rpm for that size bit about 200 and feed it realy slow.

 

Why is there no oil already sitting there from the last time(every time)the drillpress was used?

 

Will the bit even fit in the chuck?

 

got to measure the chuck, and if i have to i will have the bit cut down to fit, and i will step up to the 41 / 64ths

 

patience young grasshopper....patience

 

and yeah i plan on going as slow as i can, ill never hear the end of it if i break it, I wont have anything else planned that day lol

 

I bought one of the cheapy off shore benchtop drill presses in the late 70's. On the first hole the motor gave up. I welded up a bracket to put on a clothes dryer motor, about 1/2 HP, it was three times the size of the original. It has been in regular use since.

 

Drill in steps. Start with about a 3/16 bit and work up to the 41/64 in about 3 steps. Make sure that the work is clamped securely to the table and as has been mentioned many times on this post, use lots of cutting oil. Good luck.

 

What's the material you are putting the holes in?

 

How would you do that? May need a silver and deming bit(reduced diameter shaft).

 

If it's anything like my ancient alien-head Craftsman, it's still tight as a drum after many, many holes, nothing like some of the newer stuff. It doesn't get used much since I got the Bridgeport, but I definitely wouldn't spend money to replace it with a "newer model"

 

If it were mine, I know it would break.

 

Thats the real question -

 

Check out the run-out with a dial indicator, nothing worse than an egg shape hole

 

That is the way to drill that large a hole.

 

its grandma's drill? thats a pretty cool grandma!

 

Has anyone tried this stuff? Boelube paste, developed by Boeing.
http://www.orelube.com/pages/Boelube_prod/Boelube_Products.html

 

You're going to have trouble.

Bob

 

drilling through a steel hub, brand new bits... they wont be after i am though with em lol... while we are on the topic, 41/64ths because thats the size closest to .005 smaller than the knurling of the wheel studs i am using.

 

Or going from Ford 4 on 4-1/2 to 5 on 4-1/2. No need to drill hole #5.