Types of Micrometer Bookmarked

In the previous article, we have talked about the differences between micrometer and caliper. As we know, a micrometer is not as versatile as a caliper. Micrometer only comes with a specific function in its unit. While calipers can cover several measurements in a single unit of the caliper.

As our observation on the web, these are our findings and also we include the pictures of the several models of micrometer currently available.

Based on The Dimension It Measures

You will require three units of mic to measure outside, inside and depth. 

1. Outside Micrometer

Outside micrometer is the most used mic. It clamps the object from outside side. It measures thickness, outside diameter, width, and length. But, its range is short. The most common is 1".

Image Credit: Wikipedia

2. Inner Micrometer

As the name tells, it measures inner dimension such as inner diameter.

Image Credit: Wikipedia

3. Depth Micrometer

A single unit of caliper can be used to measure depth. A micrometer doesn't. There is a model called depth micrometer. The look can be seen on the following picture.

Image Credit: Pixabay

Based on Its Scale Model

1. Vernier Micrometer

Image Credit: Pixabay

Vernier micrometers manifest and employ vernier scale to magnify its measurement. Unlike other micrometers, this kind of micrometer has better resolution because there are three scales printed. They are the main scale on the barrel, the scale on the thimble, and the horizontal scale on the thimble which is called the vernier scale. The Vernier scale is also used in the vernier scale. 

2. Dial Scale Micrometer

Image Credit: Pixabay

It employs the dial scale like the dial caliper. The needle rotates to show reading. However, it's rare for us to see this model on the market. Perhaps, you have one in your shop.

3. Mechanical Counter Micrometer

Like a tally counter, this one has mechanical counter as the reading display. It's unique. But, this one is not popular.

The real look can be seen in this Youtube video.

4. Digital Micrometer

Digital micrometer serves you with incredible speed for measurement. You are no longer to reading the read the two scales. You can instantly get the reading through the LCD screen. Today's digital micrometer is also be able to allow you transfer the data to your smartphone or computer. Herewith, you can also make a rapid repetitive measurement because the reading is directly stored in your spreadsheet.

If you have many objects to measure, a digital micrometer with data transfer feature can be a nice investment.

Image Credit: Wikipedia

The above digital micrometer applies touchscreen. As you can see it allows Bluetooth connection and wifi for data transfer.

Another advantage of a digital micrometer is its analog reading availability. Though not digital micrometer allows you to take the reading manually. When you are about to run out of battery, you are still able to use it.

Based on Its Anvil Shape

1. Flat Anvil Micrometer

Image Credit: Wikipedia

It's easy to identify the anvil surface of the above picture. As you can see, it's flat.

2. Ball Anvil Micrometer

Image Credit: AccurateShooter.com

To quantify the thickness wall tube, a ball micrometer is recommended. It's less error compared to the usual anvil (Flat). Ball micrometer is applied in reloading. 

3. Thread Micrometer

Image Credit: Wikipedia

4. Pointed Micrometer

Image Credit: Pixabay

5. Tubing Micrometer

Image Credit: AccurateShooter.com

6. Paper Micrometer

Designed exclusively to measure paper thickness.

7. Deep Throat Micrometer

8. Pitch Micrometer

9. Three Point Bore Micrometer

10. Three Flute V-Anvil Micrometer

That's all guys. Never ever again you get confused the types of micrometer. Another type is based on the reading. There are metric and imperial mic. Metric uses mm while imperial uses inch. This is just about how familiar you are. If you live in the USA, then you have to prefer the inch reading.

Micrometer and Caliper Differences

When it comes to guns, besides securing your guns, it's not far away from reloading. When reloading, you will precision measuring tools. Some of them are micrometers and calipers. But when do you actually use the micrometer and when to use the caliper? These questions may be easy to answer for advanced users. However, beginners may need more knowledge treatment. In this post, we are trying to cover some differences of micrometer and caliper.. These differences can help you understand micrometer and caliper's typical functions so that you know what to pick.

 Here is the list of those things.

5 Differences Between Caliper and Micrometers

1. Speed: Which one is faster to use?

With different body parts designed, these two tools offer different way to use as well as different speed. When using caliper, you will only need to slide it in order to adjust the jaws with the item being clamped in between. On the other side, when you use micrometer, you will need to spin the rachet on the bottom to hold the object you are going to measure. Moving an inch with a caliper does not require as much effort as micrometer does. In addition, taking a measure with micrometer will need you to be careful with clamping the object in order to prevent it from getting too much pressure and broken. By reading the fact I just mentioned, I am certain you can conclude in an instant which one is relatively faster to use, which is caliper.

2. Measuring Range

Both micrometer and caliper offer different measuring ranges that are quite significant and makes each one of them equally crucial. Micrometer has much narrow measuring range compared to caliper, considering caliper’s lengthy body that looks like a ruler. On the other side, micrometer seems shorter with a C-frame body. In general, the measuring range of micrometer is 1”, while caliper offers measuring range up to 6”. However, nowadays there are different ranges of micrometer available that you can find easily, such as 0-1”, 1-2”, 2-3”, 3-4”, 4-4”, and 5-6”. You also can find other different options of caliper with measuring range such as 12”, 18”, 24”, even up to 40”.

3. Resolution (The smallest reading)

Despite its lack of speed and measuring range, apparently, micrometer offers much better resolution compared to caliper. Currently, you can find micrometer with resolution as much as 0.0001″, 0.00005″, or even 0.1 μm, while caliper only offers resolution up to 0.001”. But oftentimes, the micrometer with resolution of 0.00005” is much easier to be found and more apt to people’s needs.

Most people will firstly determine a particular aspect, such as thickness, diameter, or depth of an item using caliper, then they will use micrometer if there is any need for more accuracy, thanks to its extra specific resolution.

4. Functions

Equipped with different measuring ranges and resolutions, it is obvious that these two tools are used for different purposes too. When you want to measure both inside and outside diameter of an object, you will want to use caliper. This is because the caliper in common provides 4 jaws that allow it to measure the inside as well as an outside of an item at once with one single caliper. In addition, you can also calculate the depth of the object using caliper because it is featured with a stick that you can use to put into the object to see how much its depth is.

On the other side, micrometer can only be used to measure either an inside or an outside diameter. When you are trying to measure an inside and outside diameter of certain object using micrometer, you will have to prepare two of them. You can also measure the depth of an object using micrometer as well, but you obviously will need a separate tool for that.

5. Body Parts

When you use either a micrometer or caliper, you will need to clamp the item you wish to measure. Although both of them clamp the item, these two tools actually come in different shapes and bodies. Micrometer comes with a U or C-frame that allows it to measure cylinders, while the caliper is straight as a ruler with the scale on its sides.

In order to hold the measured object, a micrometer uses anvil and spindle. The anvil is usually flat, but you can find micrometers with other models of an anvil, such as tubular, ball, etc. On the other side, caliper generally offers 4 parts that can be used to clamp an object you want to measure, they are 2 internal and 2 external jaws that are flat and pointed, but you can find calipers with other shapes as well.

In terms of giving consistent pressure to the measured item, micrometer has the ratchet driver at the bottom end of its body that you can rotate to allow the spindle to move accordingly, adjusting itself with the item you desire to measure. Instead, the caliper has a part called a thumb scroll that you can simply roll on so that its jaws can clamp the item steadily.

The part of the micrometer that gives a display of the scale is the thimble and barrel. Thimble is the one you can rotate with 50 equal divisions around its perimeter and each division’s value equals 0.01 mm. The barrel, on the other hand, is marked in 0.5 mm divisions. Digital micrometers are sometimes provided with either a thimble scale or none.

Compared with the caliper, either the vernier, dial, or digital provides a scale that is connected to its jaws and slides together.

Conclusion

Measuring components of a machine is crucial to make sure that it is supported by the exact size of components. Those who work in workshops, metal industries, or stuff related to machinery and engineering must be very familiar with micrometer and caliper, which are the linear measuring tools.

There are several types of micrometer, such as outside micrometer, inside micrometer, micrometer depth gauge, bench micrometer, and the special purpose micrometer, which consists of screw thread micrometer, vee-anvil micrometer, and thickness micrometer. There are also a variety of caliper, namely inside caliper, outside caliper, divider caliper, oddleg caliper, vernier caliper, dial caliper, and digital caliper that work with their own functions respectively. In this article, I only refer to the outside micrometer and vernier micrometer in general.

Although both of these tools have the same function which is to measure items such as screw, cable, etc. that requires high precision, there are several key things that make them different from each other. Gratefully, we have covered the differences in this post. For further reading, you may want to check out the source of information that is behind this post crafting.

References: 

• https://www.theengineerspost.com/types-of-micrometers-screw-gauge/ 

• https://www.fullyinstrumented.com/micrometer-vs-caliper/ 

• https://www.youtube.com/watch?v=_wYHpDNwAfY 

• https://www.youtube.com/watch?v=vkPlzmalvN4&t=325s

Top 7 Fireproof Gun Safe Brands

There are many fireproof gun safe brands available on the market. Some have a good reputation and some have no. The reputation they got is from customer feedback and satisfaction. It increases the number of sales in the future.

Here are some good fireproof gun safe brands available on the market.

1. Stack-On

I found the customer reviews of Stack-On on Amazon.com are very amazing. Most of Stack-On products have good ratings from buyers. It means that the product has good performance.

2. Blue Dot Safes

Blue dot safe has a good reputation, too. It's like Stack-On, which has a good rating from the buyers.

3. Mesa Safe Company

4. Steelwater

5. Sentry Safe

Sentry safe is famous. However, many Sentry Safe products are small built. Not like other fireproof gun safes, the model of Sentry Safe is created for handguns and valuables. If you want to store a long gun in it, it's impossible.

6. Winchester

7. American Security

Yeah, I think that's all I can write to load out my opinion about gun safes. Hopefully, you enjoy it.

Amsec TF5517 Gun Safe

AMSEC is one of the well-esteemed names among manufacturers of security and weaponry. The company has earned an estimable reputation particularly with respect to gun safes. AMSEC launched its TF series gun safes in May 2014. The launch included 2 models; a TF5517 and TF5517e5. The only difference between two models is that the TF5517e5 version came with electronic lock whereas the TF5517 comes with 3 wheel combination lock. The outside dimensions are as follows 55.25" x 17.34" x 16". The safe weight is approximately 286 lbs. The material used in the body is a 3/16’’ hard steel plate with double layer of insulation to protect against fire. The gun capacity is up to 11 long rifles and up to 10 handguns based on their size. It has three shelves and one large shelf to store long rifles. Thanks to multiple story shelves which offers plenty of space to have ammunition or other valuables to be stored.

Electronic keypad lock mod provides a quick and easy access your safe even in the dark. Yes you read it right because the keypad automatically lights up when in the dark. The safe has a drill resistant hard plate to avoid any breach. The safe also comes with external spring loaded relocking device. The interior is designed to maintain temperature of less than 350 degrees Fahrenheit in event of fire break out of up to 1200 degrees fahrenheit for duration of 30 minutes. Both models come with 2 stage dual fire seals with silicone seals on door jambs, that will expand rapidly when exposed to heat. This serves as a layer of protection for inventory inside the safe against fire and smoke, which will always go through and bypass any minor gaps. Safe consists of a total 8 bolt system of 1’’ thick each. They are placed on each of the four sides on front door, 3 dead and 5 active bolts. If you are a clean freak and likes things organized then this will really excite you. AMSEC have introduced a PDO (Premium Door Organizer) to both these safes. It maximizes your storage without giving you hassle to browse through everything for commonly used items. The interior is of mocha fabric including back-cover and firewalls. Battery that powers the safe is easily replaceable; you just need a screw driver from your tool box and a new battery which is easily available from any store.

Sadly both models comes in only one finish i.e. Satin Black with chrome handles (if you are buying TF5517) and electronic keypad has a pretty straight forward interface. The basic in the box items include: Safe, instruction manual and mounting hardware.

Even if you are not yet convinced then you can ask manufacturers when ordering to provide the added protection from theft and fire. But this peace of mind will cost you extra few hundred dollars. You should need to read tips before buying to get a maximum result at the end.

The TF5517 model cost $679 and TF5517e5model for $800 on Amazon.us including the shipping of the safe to your address also.

Things to Know Before Buying A Gun Safe

Buying a gun safe is the first step towards securing your assets and firearms. However, you cannot just enter a store and buy one because that would be reckless. Instead, you should take many factors into consideration before reaching your decision.

One of the basic things you should have in mind when buying a safe is the price. Nicer safes do cost an extra buck, but given the levels of security and quality they offer, they will spare you from a lot of stressful moments.

Here are some other things you should take into consideration:

Wall Thickness

Safes come in all sizes and shapes, and the same things apply to their walls. Here, the following rule applies: The thicker the wall, the better it is. Here, we have to return to the price issue because thicker walls cost an extra dollar, but it’s always better to be safe than sorry. In addition, it is worth mentioning that you should check whether the safe has any type of armor shield over the lock box. This detail is especially important in cases of fire, where it can keep your assets safe even if heavy objects hit its surface.

Mechanical or Digital Lock Mechanisms

Over the course of time, mechanical lock mechanisms have proven to be the better choice over digital lock mechanisms. Electronic locks are considered as more complicated something could easily go wrong. One thing you should definitely check is whether the safe has a UL Goup II certification. If you want to buy a safe with a digital lock with the latest biometric technology, make sure that it is a UL Type I. It is also strongly advised that you don’t purchase cheap electronic locks which are known to have lesser quality and duration. In addition, if you decide to buy an electronic lock safe, keep changing your combinations in the keypad, or you will otherwise leave traces of the combinations with wear patterns.

Choose Fireproof Safes 

It is strongly advised that you choose a UL Rating of at least 350 degrees Fahrenheit safe. Your fireproof gun safe should be able to endure an hour of extremely high temperatures in order to keep your valuables safe.

Storage Space

Make sure you buy the safe of the right size for you. Take into consideration the fact that if you only have a pistol at the time of the purchase, it doesn’t mean that you won’t purchase a handgun later in time, so make sure you don’t buy a safe that is too small for anything else except for pistols. The extra storage space can easily be filled with jewelry and other valuables.