Search found 1676 matches

by tornitore45
Mon Jun 03, 2019 7:13 pm
Forum: General Discussion
Topic: marking tools
Replies: 15
Views: 596

Re: marking tools

You are asking the impossible. Short of equipping each tool with an electronic tracking device how can you tell from 50 feet what is in one hand or in one's pocket. Manufacturing has not resolved employees pilfering despite larger means and severe penalties.
by tornitore45
Wed May 29, 2019 4:04 pm
Forum: The Junk Drawer
Topic: Shared air and electric line
Replies: 28
Views: 858

Re: Shared air and electric line

Assumptions and preconceptions. Although as a scientist I was trained, strive to and spent a lifetime in a lab where we learned to be factual and objective, nobody is immune. I think by images if such a statement makes any sense, and the first one that pops up set the stage.
by tornitore45
Wed May 29, 2019 3:39 pm
Forum: The Junk Drawer
Topic: Shared air and electric line
Replies: 28
Views: 858

Re: Shared air and electric line

Need to take a remedial reading course. Is clear what the OP meant.
by tornitore45
Wed May 29, 2019 12:37 pm
Forum: Milling Machines
Topic: Bare Metal Protection
Replies: 13
Views: 478

Re: Bare Metal Protection

There are those out there that want you to replace that bulb with an energy-efficient LED. If I was after the light an LED may make sense, but the reddish light off the bulb is a byproduct of the "heater". I designed LED ballast for a living, and I can tell you that while the LED may last 1/2 milli...
by tornitore45
Wed May 29, 2019 7:04 am
Forum: Milling Machines
Topic: Bare Metal Protection
Replies: 13
Views: 478

Re: Bare Metal Protection

Before installing a Mitsubishi split AC/Heatpump I covered my lathe and turned on a 60W incandescent fed through a diode. It creates a mini-environment free of humidity and the warmer metal does not initiate condensation. The diode cut the power so the light bulb last a lifetime.
by tornitore45
Wed May 29, 2019 6:55 am
Forum: The Junk Drawer
Topic: Shared air and electric line
Replies: 28
Views: 858

Re: Shared air and electric line

Regulations aside, how do you plan to enter and exit the pipe air tight?
by tornitore45
Wed May 22, 2019 6:09 pm
Forum: General Discussion
Topic: Drill shank hardness
Replies: 32
Views: 1784

Re: Drill shank hardness

Warmstron1955 showed us a rare bit used to drill oil passages in crankshafts or plumbing elbows.
by tornitore45
Wed May 22, 2019 2:57 pm
Forum: General Discussion
Topic: Drill shank hardness
Replies: 32
Views: 1784

Re: Drill shank hardness

My comment related to finding the transition between the hardened and soft segments. Not any kind of machining. Concentricity here is not a concern . A swipe with file will immediately let you feel the difference. Mark the spot with a magic marker, cut off most of the hard flutes and what is left is...
by tornitore45
Wed May 22, 2019 5:31 am
Forum: General Discussion
Topic: Drill shank hardness
Replies: 32
Views: 1784

Re: Drill shank hardness

grip a (damaged) drill by the fluted end, and take a light pass Building on that idea. I am not keen on holding a drill bit in a collet I may not even have and running my cheap carbide tool into hardened HSS but a quick and easy alternative may be to clamp the bit in the wise and draw a file. I kne...
by tornitore45
Tue May 21, 2019 4:59 am
Forum: General Discussion
Topic: Drill shank hardness
Replies: 32
Views: 1784

Re: Drill shank hardness

Google HSS heat treatment hardening

This is the first link that comes up
They quote temperatures in excess of 1200 C

https://www.totalmateria.com/page.aspx? ... N=CN&NM=57
by tornitore45
Mon May 20, 2019 4:39 pm
Forum: General Discussion
Topic: Drill shank hardness
Replies: 32
Views: 1784

Re: Drill shank hardness

Opps! You're right. Probably only works with HF drills.
If one is lucky, otherwise there is not enough Carbon in recycled soup can to harden.
Bashing HF is a popular sport but actually their tool quality has improved, still cutting tools are iffy.
by tornitore45
Mon May 20, 2019 12:13 pm
Forum: General Discussion
Topic: Drill shank hardness
Replies: 32
Views: 1784

Re: Drill shank hardness

Same here. I save any hard tool steel. Tap and even dies, I made a form tool out of a broken scissor blade. Too thin to be used flat but supported with a blank worked fine.