Bench Vises: How to Choose the Right Bench Vise?

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Can A Step Drill Bit Replace Your Reamers?

Using a step drill bit has become much more popular over the last decade for a variety of reasons. Most notably, there have been a lot of changes made to the overall design, which means that you have more options to choose from. While this means that you can do a lot more with a step drill, there are some limitations as well depending on what type of material you are using. However, under the right circumstances, they can not only bore and counter-bore, but also ream fairly effectively. So does this mean that they can replace your collection of reamers completely?

The point of using reamers is that you can create a much more precise and smooth surface finish than a traditional twist drill bit. When used correctly, a step drill bit can often achieve these same results. The key is being able to determine if the conditions are suitable. To determine this, you need to consider both the material that you are working with as well as the total thickness or depth. Additionally, you need to determine what type of bit you are using. There are two basic types of step drill bits - threaded and non-threaded. Threaded bits are less precise and used with a twist drill, while non-threaded are often used with a hammer drill and can be more precise.

Using a step drill bit is ideal when you are working on lexan, plexiglass, and fiberglass because it will not break or damage them like a regular twist drill will. With these materials, it will almost always be much easier to opt for a step drill over a reamer. The same holds true for sheet metal. Not only is sheet metal very thin, which gives you ample control over the size of the hole that you create; but it is also relatively thin.

There are some limitations to what a step drill bit can do though. The first thing to keep in mind is the depth that you will be working with. These types of bits get progressively larger the further into the surface they go. If you are creating a very deep hole, then there is a chance that the bit will make the top portion larger than it should be. In general, you will need to use a reamer if the material is more than ¼ inch thick, although some people argue that anything beyond an eighth of an inch thick is too much for this type of drill bit. Keep in mind that the thicker the material, the more lubricant you will need to use.

As you can see, there are a variety of situations in which a step drill bit can completely replace your reamers. However, when looking at the big picture this isn't the case. There are still plenty of scenarios in which using a reamer will be more effective. Most notably, when the hole that you are creating is going to be fairly deep or the material that you are working with is too thick. The final conclusion is that it is ideal to have both in your toolbox.

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Precision Twist C29R10 High Speed Steel Jobber Length Drill Bit Set, Black Oxide Finish, 118 Degree Conventional Point, Inch, 29 piece, 1/16" to 1/2" x 64ths

Product Features

• High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance
• Black oxide treatment adds lubricity and creates small pockets on the surface of the tool that act to hold coolant near the cutting edge
• Round shanks allow use with a wide variety of toolholding systems
• When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging

Product Description

Precision Twist Drill HSS Special Purpose Drills Drill Sets, Type: Fractional size straight shank set, Style: Jobber length with 4" cutting depth, Size: Includes: 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 11/64, 3/16, 13/64, 7/32, 15/64, 1/4, 17/64, 9/32,

Wire Gauge Supports Drill Bits to Create Precisely Sized Holes

Drill bits are equipments or tools that are used in making cylindrical holes. Being referred as a drilling machine, Drill bits are employed in wood, metal and plastic applications where more precisely sized holes are needed. Drill bits are obtainable in various drill types that include metal drills, gun drills, screw machine drills, core drills, step drills, spade drills, forstner drills, masonry drills, dental or surgical drills, wood bits, twist drills, drill blank taper drills and much more.

The choice of drill bits depends upon person to person. If you are looking at a few quick handy tools, then a set of steel twisted bits and a few masonry bits would be adequate. But if you are working on the floor then you would require bits which are larger and or designed for a specific requirement.

An extensive search through the internet offers you one of the best bits named as steel twist bits. This twist bits can be employed for wood, plastic and similar material and are also advantageous while drilling metal sheets. Made up of either High Speed Steel or Carbon Steel, steel twist bit is highly sought-after as both the drill bits serve a different purpose like the carbon steel drill bit is used for drilling wood and not metal.       

For sharpening the blades of drill bits, you can employ a drill sharpener, a grindstone jig or an oilstone. Sharpening the blades or drilling areas regularly keeps the bits in shape, therefore it is cost effective. But you need to keep in mind that titanium nitride coating layered on the surface of the bit might ruin unintentionally during the sharpening process. By forming a correct angle at the tip while drilling you can extend the life of the of your drill bit. However, drill bits are featured with metals and wires in various shapes and sizes. The wire incorporated in the bit is available in various gauges and is applicable to give solution to the electrical process of drilling.

Definition of Wire Gauge:

Wire gauge can be defined as a measurement of how large a wire is, either in diameter or cross sectional area. It makes us to determine the amount of electric current a wire can carry without any harm, as well as its electrical resistance and weight per unit of length. Wire gauge is applicable to both electrical and non-electrical wires, being important to electrical wiring and to structural cable. Sharp and precision made for use in wood, plastic and metal, Drill Bits are accurately numbered and come in gauge sizes of #50 to #80.

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When To Choose An Annular Cutter Over A Twist Drill

There are a wide variety of reasons that you may be in need of the right portable drilling tools, like an annular cutter or twist drill. While the goal of each of these options is to create holes, they are both designed to accomplish the task differently. This means that each tool can be used in specific situations. In order to decide which tool is right for the job, it is important to understand exactly what an annular cutter was designed to do.

An annular cutter utilizes multiple teeth to cut only the material around the edges of the hole, which leaves a metal slug at the end of the process. In general, the wall thickness of an annular cutter will be no more than a quarter of an inch. That means that regardless of what size of hole you need to create, annular cutting will only remove a small amount of material. This is the exact opposite of a twist drill, which will burrow through the entire area of the hole. An added benefit of this is that because the cutter uses multiple teeth, they will remain sharper for up to 10 times longer than a regular twist drill bit.

When deciding between an annular cutter and a twist drill, there are three variables that need to be taken into consideration. The first is the hole size. In general, twist drilling should only be considered when the hole is equal to or less than one half inch thick. Anything task larger than that should be done with an annular cutter. The type of hole is another important variable to consider. Twist drills are great for blind holes when the drill bit does not need to go completely through the metal. They are also useful for creating starter holes when tapping. However, if you need to create overlapping holes, then annular cutting will prove to be more effective because less drift and chatter is experienced.

The final variable to consider is the hole location. An annular cutter will often allow you to cut holes that would be very difficult, if not impossible for a twist drill. This is because there is no pre-drilling or step drilling required. Additionally, if you need to create a burr-free hole, twist drills are probably not going to be the best candidate. This is most applicable when you are drilling either pipe or tubing and manual scraping.

As you can see, there are practical uses for both an annular cutter and twist drilling, however because of their design, they are each ideal for different situations. A twist drill would be best for any hole up to one half inch in diameter. It is also perfect for creating starter holes for tapping or creating a hole that does not pierce all of the way through the piece of metal. On the other hand, an annular cutter would be ideal for any hole larger than one half of an inch. It is also preferable when you need to create a more symmetrical, precise hole, such as when you will be overlapping multiple holes. Additionally, annular cutting offers added flexibility in terms of where you can create the hole because it does not require any pre-drilling or step drilling.

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