SPI 3 points inside Micrometer, How to use a Holetest type to measure inside diameters 

Hi Brian, If I win the lottery I'll get a BIGGER SHOP and I'll hire someone to build it... lol Almost all the tools I accumulated were purchased used, otherwise, it would be much too expensive to operate... It takes years to get a good collection of tools... Cheers, Pierre

Hi Larry, Glad the stickers made their way safely to you, I'm sure they're in a good home... ;) Thanks for the nice words, Pierre

Glad you enjoyed it!

Hi Lee, You never know what could follow you home some day when you strike a good deal... ;) Cheers, Pierre

Hi Robin, Thanks for visit and support, Pierre

Hi, just let me know when you put it up, I'll get a look at it... ;) Thanks for comment, Pierre

Hi Chris, I see that the stickers will be in good company in a good home... ;) Thanks for support, Pierre

Glad it was helpful! Thanks for your comment...

Hi Peter, 2 fluted drill bits do a horrible job on making holes, they

Hi Randy, Those are kinda practical and fast to measure and control deep bores, the only problem is the limited range, to cover a lot of range is costly... Cheers, Pierre

Hi Emma, You never what you could need in the future, even if it's not shiny... There I see your feminine side about the shiny things and jewelry boxes... lol I'll have to contact you about the idea related to the Bash... ;) Cheers, Pierre

The absence of the friction thimble is not really a problem, just with about any micrometer, I rarely use it in order to make the measure, question of experience and feel.... Thanks for comment, Pierre

Pierre's Garage Yes I get it. I have tools both with and without It would be nice to have the tool as original but that particular part is likely over priced by a wide margin. I have a Mitiutoyo caliper with no thumb wheel because the plastic bracket is too expensive. Lol Good work on the video.

You get to be a better machinist when measuring becomes second nature... ;)

Hi Chris, Those weren't new when I got them, since I'm always on the lookout for good tools, sometimes I strike decent deals on new old stuff... Or else I wouldn't be able to afford much... Nice to have those as they make life easier in deeper bores... ;) Cheers, Pierre

Hi Assad, Not certain what you mean with "Caliper type" if you talk about the 700 or 824 type series micrometers from Starrett, I own some 824 type but not some 700 type ones... ??? ¸If I have what you ask I'll gladly access your request... Thanks for comment, Pierre

Pierre's Garage i mean 700 from starrett. What is interesting about it is the lock thumbscrew at fixed jaw. Thanks. BTW your videos about these measuring tools are the beat on RU-vid.

Thanks for the kind words... ;) Unfortunately I don't own any of the 700 series tools, the day I put my hands on one of those I'll gladly make a video on how to use them, since they cost a lot of $$$ let's hope luck is on my side to find something affordable... lol

Hi Philippe, The temperature difference will have a little effect, but, not that much as long as everything is at the same temp and has the same coefficient of dilatation, the tools as well as the material will follow the same changes, it would show a little more with Stainless or aluminum cause their coefficient are different from the steel in the tools and reference... Cheers, Pierre

Hi Andrew, Even myself I get confused when it comes time to say the right number.... :( Normally in the Imperial system, we work in thousand of inches, this is where most of the numbers are given, this is expressed by 0.001"... When we need more precision we call it tenth of a thousand expressed by 0.0001" ... This is the most we can get in a serious regular shop, and, this requires pots of care and good tooling to get there... When you hear a machinist saying as an example " Seven hundred fifty and three tenths " this will write : 0.7503" another example: " Four inches five hundred twenty-six thousands and five tenths " = 4.5265" Hope I said it clearly, just let me know how it sounds... ;) Thanks for watching, Pierre

Allo Leo, Pas de problème, wledpierre@gmail.com À plus, Pierre

Hi John, You see how patience is a virtue... lol Thanks for watching, Pierre

Oh that's what that means , HaHa !

Hi, you're right, 1.0 inch is exactly 25.4 mm, the right numbers should be 28.2623, Even If I double-check sometimes mistake make it to you... Sorry about this... Thanks for viewing and for spotting the error, Pierre

you can use youtube Edit tool to insert a note in the video anytime after the video has been uploaded with right corrections

Hi, I totally agree with you, also a video is in the plans about those also, just got to find some time to film and edit... Thanks for comment, Pierre

i'm wondering, you attach a micron resolution indicator to a dial bore gage, you get that kind of accuracy and repeatability for the whole unit? probably, at least not on chinese ones.

They're all pretty precise, the main restriction is the indicator itself, you need a good quality one to get the best possible measures. Cheaper ones are less predictable... And, this is another field where the handling is also primary, when you want to get very precise measures you need to practice regularly and hone your skills. When you think about 0.0001" or 0.002 mm those are minute dimensions...!!!

i have a lot of good indicators but lacking in accessories. For example, instead of buying various depth mic's, now you can make or cheaply buy a depth indicator, which is just an attachment that takes an indicator, for example igaging makes one. It comes with extensions up to 24" depth. But if you buy a depth indicator it cost 10x as much, half the depth. Because, it has a rod for each length instead of being able to group the rods. Here's a picture www.gardco.com/images/measuring/mt/dial_depth_elect/dialdepth2.jpg