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Adeptus
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"... For the machine is immortal." But the machine does break. That's why I'm here.

And that becomes more apparent the older one gets.

The occasional 45 Colt revolver, break barrel shotty, and 30-30 is all fine and good but have you cleaned black powder residue out of anything designed after 1890?

Yep. And just to make things more frustrating. European manufactures started using Torx Plus to keep is on our toes.

(And to take advantage of )

Fun to know. Useful occasionally.

Can't be used in modern applications.

Great for US civil war and Napoleonic war reenactment.

True for western culture(s) in general.

If the inside can be accessed from the drip-pan, a thin wire or light air pressure can be used to clear the hose.

No.

As much as or seems to be reinventing the wheel, there are many reasons that different drive types have been developed.

(Security, torque limiting, etc.)

Example-

Robertson screw. (Commonly mistaken for the modern square drive)

-Allows for cold stamping the screw head.

-Low installation torque.

-Good retention of screw on tool bit.

-Easy/fast removal.

-Less likely to cam out until reaching installation depth.

(All desirable in fast paced, high volume, cost sensitive construction applications)