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It has been brought to my attention that somehow, against all odds, tap shank diameters and square drive sizes are standardized between metric and inch. How the hell did that happen? https://www.tapmatic.com/tapping_questions_standard_tap_dimensions_ansi_shanks.ydev Anyway, I've ordered one of...

I like it! I'll have to make some of those too.

The particular size I've needed most lately is 10-32. On a hunch, I went out to the shop and checked some tap shanks. It turns out, that much like the thread, a 10-32 is nearly identical to an M5. Ordered the metric set. Will probably order a set of the LIsle sockets too. You can never have too...

https://www.amazon.com/Mesee-Machine-Adapter-Spanner-Accessory/dp/B0BY1W3LHN/ref=sr_1_31

No, those are nut drivers. The ones I want have square holes sized to fit the shanks of taps.

Tired of trying to get a chuck to hold a tap and cranking the knee up and down for a spindle tapper. Looking for these in inch/imperial/SAE/U.S. Customary. I know of the alternatives, I want THESE.

My experience with laydown threading inserts is yes, the shims/anvils/seats are standardized.

I see it all the time on these forums. I believe it is simply because the hobbyists have no real-world concept of what is required and expect everything to be within .001. I've never owned a tenth indicator. Occasionally I am tempted to buy one. Then I remind myself that nothing I do requires...

As it turns out, I've never needed to adjust it. The center height of my lathe has never changed. I suppose if I got another lathe....

^^^This^^^ Here's mine. I put a RE magnet in the base (recessed .003) so it's very solid. I also get irritated when people use incorrect terms like calling digital calipers "verniers". Machinists are supposed to be precise, that should apply to speech as well as parts.