To measure moisture, humidity, and temperature, opt for one of our many reliable moisture meters. Our specialty micrometers are perfect for accurately gauging the thickness of a variety of metal parts.
In addition to Gauss meters, we also carry a large selection of specialty test equipment , from telescopic probe extenders to roughness tester profilometers. You may have noticed that these are only a small fraction of the measuring instruments we have available for you.
From the basic measuring tools to the more technologically advanced, the best measuring devices record data with exceptional accuracy, are electronic, and can transfer data to a computer with ease. The best measuring instruments suppliers are experienced, knowledgeable, and helpful. They listen to your needs and point you in the direction of the perfect option. The variety of our products ensures we can serve handypeople and businesses of any experience or budget level. At Penn Tool Co, we strive to provide you with a wide selection of top-quality, superior performing products.
Machinists and die makers, for example, can use our high precision measuring tools to help maintain quality control and to ensure your factory and machine shop consistently produces accurate parts. Further, to ensure quality and durability, we carry only the most reliable brands. If you want to know more about the best measuring instruments on the market, reach out to our team today. All Rights Reserved.
Satisfaction Guaranteed - If for any reason our products do not meet your expectations, return them. Complete refund or credit will be issued for unused and unmarked items returned within 10 days of receipt. Defective items will be either replaced or repaired. Gauge blocks are typically used as a reference for the calibration of other measurement tools. It is believed to be a combination of:. In practice, you have to wring two blocks together to feel the effect.
And the force is quite strong. Gauge Blocks are typically used with two pads. One is oiled, and the other is clean. To wring two blocks together:. After use, it is important to keep your Gauge Blocks clean of debris and contaminants, and oiled to preven corrosion. You can gently stone the nick out to restore wringability. As in many things Metrology oriented, there are different precision grades for Gauge Blocks.
And, there are different formal specifications for these grades. Here are some typical grading systems described by Wikipedia :. Generally, grades are equivalent to former U. Federal grades as follows:. Achieving the level of accuracy these grades suggest will require careful temperature control as these tolerances are easily subject to thermal expansion.
Gauge Blocks should be made of either hardened steel, tungsten carbide much harder than steel , or ceramic. Hardness reduces wear during use and prolongs the life of the Gauge Blocks. Ceramic blocks have better thermal properties than metal Gauge Blocks. Did you know we have a Free Gage Block Calculator? It knows the standard sizes of gage blocks and will tell you which ones to wring together for a particular length.
You can spend thousands on a good set of high grade gauge blocks from a name manufacturer. HFS pc 0. Pin Gauges are not as handy as Gauge Blocks, but they can still come in plenty handy depending on your application.
Pin Gauges are cylinders that come in precise sizes. Typically they are used to determine the diameter of small holes. The idea is to find the largest pin size that will drop into the hole unaided by any force but gravity.
Gauge Pins come in different grades, with the most common being Class Z. So, a 1. So, for a hole that is specified as 0. If the NoGo pin fits without interference, the part is oversized. Fowler Gauge Ball Set, 52 piece. Gauge Balls, as the name suggests, are precision balls in specific accurately made diameters.
For example, this diagram shows how to use a Gauge Ball to measure the major diameter of a countersink:. Example courtesy of Math Encounters Blog …. Bore diameter example courtesy of Math Encounters Blog …. For certain kinds of Metrology tasks, Cylindrical Squares are handy. Cylinder Squares are typically used to check and measure squareness. For example, you could check the squareness of an angle plate by placing it on a surface plate adjacent to a cylinder square.
If the contact is continuous for the whole contact area between the two, the angle plate is square. Shine a light to show up any gaps and you can tell to within a tenth 0. Another use is to have the square be a standard while we sweep an indicator up and down the square. For example, we can check the tram of a milling machine by placing the square on the table, a DTI in the spindle, and sweeping up and down the cylinder square. As you can see, the DTI is in the spindle, the square is flat on the table I cleaned that area before putting the square down and I can evaluate how well the mill is in tram by raising or lowering the Z-axis and watching the behavior of the DTI.
Given the right measuring tools and a lapping plate, Cylindrical Squares can be corrected for errors pretty easily. These are typically made of cast iron, and are more commonly used for setups than for Metrology purposes.
Using the typical cast iron angle block is pretty rough and tumble. The plate pictured above is only rated to 0. So that top edge could be 0. Typically, they are made for grinding and other applications requiring high accuracy. The one pictured above is accurate to 0.
You can, of course, buy higher quality angle plates for more money than either of the models pictured here. Precision Angle Block Set. Suppose you want to setup a part quickly in your vise, but it needs to be cocked at a particular angle and not square?
Try some Precision Angle Blocks. Pretty nifty, eh? Of the two versions shown, I prefer the top style just because I can more easily stack to make up different angles.
Precision ground blocks. How to get things square? Your last avenue is to use your or Blocks. If it were me, I am buying a nice set of blocks before any cylinder squares, angle plates, or precision angle blocks.
Tip: Have you got a friend with a surface plate and cylinder square? Haul your angle plates, blocks, and blocks over and check their squareness.
You may be very pleasantly surprised at how good they are. Feeler Gauges. You probably came across them for the first time as an aid to setting spark plug gaps when working on your car. Measuring Bores can be one of the most difficult CNC measuring chores. The Mitutoyo set I have featured above is more expensive than what most machinists purchase, but there is a method to the madness. You see, it takes a fair bit of touch and technique to use Telescoping Gages successfully.
Having a nicer set of Gages helps, because they have better feel, though you will still need to practice your technique until it is accurate and repeatable. Read on to be sure you understand what it takes to master these gadgets.
The idea behind Telescoping Gages is you insert them into the bore. The bore causes them to retract, then you withdraw them and measure the end to end distance between the contact points with a micrometer. The end of the handle has a knurled knob that controls a lock. Sounds easy, right? In practice, this is done with a sort of rocking motion and simultaneous use of the lock.
Ideally, get a few different bores to play with whose size you know very accurately. Try working the feel with your eyes closed until you can get repeatable accurate measurements. Mitutoyo Ball Gage set, 3mm to 13mm. So what do you do if you want an easier, albeit much more expensive method of measuring bores? Commonly the answer is to use a Dial Bore Gauge. Mitutoyo Dial Bore Gauge Set, 0. There are a few ways to get your hands on dial bore gauges without totally breaking the bank.
Our Blocks have five tapped holes and 18 untapped holes that can be used for measurement reference as well. Accurate and square to 0. The most important measuring tools from Tormach. Sharks With Cameras. Get in Touch.
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