I need a micrometer to measure camshaft lobe height, journal diameter, and the thickness of valve clearance discs. Would this set give accurate enough measurements? http://www.harborfreight.com/3-piece-micrometer-set-66512.html?utm_medium=cse&utm_source=nextag&hft_adv=40011&mr:referralID=5a9c804a-…

Harbor freight products will give you a “close” measurement but I don’t know how accurate that will be. You could always take the cam to a machine shop if you have one nearby and have them check it for you. That’s what I do if the need arises. I sold all of my precision tools several years ago becau…

I don’t know who or what CENT-TECH is, but Harbor Freight specializes in low end cheap stuff. There are certain kinds of tools that I will buy from them. But precision measurement instruments are not among them. They’re great for low stakes, utility stuff that you don’t necessarily use all of the…

How much would I need to spend to get one that would be at least 98% accurate? What brands or models do you guys recommend?

For automotive tools, if you want the “real thing” then you’d flag down a Snap-On truck someplace (or maybe they sell online, I don’t know) - but you’d save up for 6mos first. I’m just a shade-tree guy so when I need reasonable quality I often just go to Sears. I sort of have a “Craftsman or bette…

I haven’t priced precision tools in a while but Lufkin is the brand that I bought most. Craftsman has some good ones as well but they buy from several different makers. You could try a pawn shop and save a little money. Look for name brands like Snap-On, Brown & Sharpe, Craftsman or Lufkin.

For automotive use, a tool like this is more versatile and easier to use… [image] 150 mm 6" Digital CALIPER VERNIER GAUGE MICROMETER | eBay 150 mm 6" Digital CALIPER VERNIER GAUGE MICROMETER | Business & Industrial, Manufacturing & Metalworking, Metalworking Tooling | eBay! …

The outside micrometers I have are made by Starrett along with Brown and Sharp. The inside micrometer set is from Central Tool. These things are accurate and a bit pricy but worth it if you plan to use them on occasion. I don’t remember what I paid for my stuff as it was purchased a long, long time…

If you have access to a good machine shop, they should have a set of Jo blocks or other standards that they use to check their measuring tools. Another possibility is an instrument calibration or metrology service in your area who should have the capability to check measuring equipment. Even very …

The micrometers you show have measurements down to 0.001", and I’m sure the accuracy is plus/minus a few thousandths. If that won’t cut it, look elsewhere. No tool will have an accuracy equal to the lower limit of it’s measurement capability. I’d guess +/- 3 to 5 thousandths, but it could be as l…

This one has great reviews… If anyone sees a reason why I shouldn’t buy it, please let me know. [image] Amazon.com: Carrera Precision CP9806-TF Titanium 0-Inch to 6-Inch Electronic Fractional & Decimal Digital Caliper: Home Improvement Features »Extra Large easy to read digital LCD scre…

Micrometer Selection

Maintenance/Repairs

Caddyman February 11, 2012, 10:00pm 7

For automotive use, a tool like this is more versatile and easier to use…

Like anything else, you get what you pay for…A professional machinist is going to spend far more on his tools than an automotive hobbyist needs to…

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Micrometer Selection

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