OP
Scrounger
Platinum Member
I was mounting a plastic strip under the bucket to protect my driveway and sidewalks. It was from fallline.com and its been a killer product so far.
Bucket Drilling Question
- Thread starter Scrounger
- Start date
- Views: 11521
jmc
Elite Member
- Joined
- Jul 21, 2003
- Messages
- 3,114
- Location
- SW Indiana
- Tractor
- Ford 1920 4x4 (traded in on Kubota). Case 480F TLB w/4 in 1 bucket, 4x4. Gehl CTL60 tracked loader, Kubota L4330 GST
Just a few thoughts-
The cutting edge needs to be annealed to drill like normal steel. Can you do a quick heating of the area you want to drill in order to keep the heat from softening too large an area?
Also, my only attempt at using cobalt drills in hand held steel drilling resulted in the edges of the drill chipping. The cobalt drills are more brittle than regular high speed steel and probably need to be used in a drill press. Check your drill bit for sharpness.
I'm a firm believer in split point drills for hand held drilling. In a conventional drill, usually a 118 degree point, the two cutting edges do not go all the way to center. The web of the drill (end area between the flutes) does not actually cut but "wallows" a hole instead, under high pressure. That's why (I think) step drilling works well. Its easier to get high pressure at the web of the small pilot drill, then subsequent larger drills only have to remove material where they have a true cutting edge.
With a split point drill, usually a 135 degree point, the cutting edges extend virtually to center, eliminating that dead zone. Its remarkable how much faster they cut in hand held drilling of steel.
John
The cutting edge needs to be annealed to drill like normal steel. Can you do a quick heating of the area you want to drill in order to keep the heat from softening too large an area?
Also, my only attempt at using cobalt drills in hand held steel drilling resulted in the edges of the drill chipping. The cobalt drills are more brittle than regular high speed steel and probably need to be used in a drill press. Check your drill bit for sharpness.
I'm a firm believer in split point drills for hand held drilling. In a conventional drill, usually a 118 degree point, the two cutting edges do not go all the way to center. The web of the drill (end area between the flutes) does not actually cut but "wallows" a hole instead, under high pressure. That's why (I think) step drilling works well. Its easier to get high pressure at the web of the small pilot drill, then subsequent larger drills only have to remove material where they have a true cutting edge.
With a split point drill, usually a 135 degree point, the cutting edges extend virtually to center, eliminating that dead zone. Its remarkable how much faster they cut in hand held drilling of steel.
John
accordionman
Gold Member
HELLO TO ALL,
i installed a tooth bar on my bucket awhile back.
i had to drill two 3/4in. holes in the bucket. i have
a 1/2 drill motor, that runs 450rpm. this is too fast
for this type of drilling. i also have a box that i use
to slow the drill,(electronic) you dial the rpm down.
it worked very well, and i used cutting oil, and used
the different drill sizes,(small to large). i grind the
drill to a different angle, (more shallow) and it does
not cut so aggressively.
good luck with your projects.
accordionman
wlbrown
wright city, mo.
i installed a tooth bar on my bucket awhile back.
i had to drill two 3/4in. holes in the bucket. i have
a 1/2 drill motor, that runs 450rpm. this is too fast
for this type of drilling. i also have a box that i use
to slow the drill,(electronic) you dial the rpm down.
it worked very well, and i used cutting oil, and used
the different drill sizes,(small to large). i grind the
drill to a different angle, (more shallow) and it does
not cut so aggressively.
good luck with your projects.
accordionman
wlbrown
wright city, mo.
OP
Scrounger
Platinum Member
Drilling for my toothbar was like drilling in butter. I used a hole saw for that. This was drilling in the cutting edge of the bucket and alot more difficult. It was done after a bit of work and alot of cutting oil.
