Cutting tool companies have been bought up over the past few decades. So many it makes it difficult to know who actually makes the products we buy.
In the case of these small companies, the true reasons the company closes are rarely made public.
I used this stuff: https://www.legacyindustrial.co/products/xtremeset-100-crackjoint-filler/ It sets very fast and I cannot see the joints under my epoxy after 5 years.
Fill the groove with sand and wet with the product. The drawback is it will not be perfectly even with the original joint and...
Sounds like you want a custom tool for off-the-shelf price?
"Long" drills are often called aircraft drills in catalogs.
There are spotting drills which are different from centerdrills.
Since it comes up so often, attached is a chart for internal threads. Cut taps require different starting hole sizes compared to form taps.
Notice that nearly all have a lower and upper range for the drilled hole before tapping.
Screw Thread Inserts (STI) are industry standard helicoils...
For the truly curious, see attached specification which describes all details of hole preparation to accept helicoils including drill size, countersink angle/diameter, and dimensions of the helicoil once installed. This is the standard used by all aerospace for inch inserts. MA1567 is the spec...
M6 x 1 Helicoil will require a 6.3mm drill. https://www.mcmaster.com/91732A782/
"Thin" wall keylocking insert requires an 8.8mm drill. https://www.mcmaster.com/93715A610/
Do the Helicoil first. If galling is a concern, use the nitronic version. https://www.mcmaster.com/93914A247/
How much juice will it pull from the wall?
A buddy used to do powder coating with an old kitchen oven and the biggest challenge was not disturbing the powder when placing them in the oven. The sliding rack is brilliant. Maybe also add a way of hanging parts from the top?
AI will never be able...
I put 2 Senville units on my building. https://www.garagejournal.com/forum/threads/a-tale-of-two-mini-splits.500551/
I need better insulation to run more them often but they are nice.
That's an excellent kit to start. I have all DeWalt stuff because a friend can get it at significant discount. Modern cordless tools are remarkable compared to even 10 years ago and most will beat the "best" contractor from back then.
For some good info, check out Torque Test Channel...
https://www.mcmaster.com/8834A71/ Made in USA, 135° split point.
MSC is a good place to shop but prices are not friendly unless you're spending thousand$ each month. https://www.mscdirect.com/browse/tn?navid=2106099&refinements=Number+of+Pieces%3A115&action=rs
For drills that are fed by hand (hand drill, drill press, manual mill), the most important feature is the material the drill is made from to tolerate heat and shock. Since the drill will be resharpened manually, the coating will not matter after the first grind. Too soft dulls easily, too hard...