Hacksaw blades are selected by choosing the correct tpi (teeth per inch) for the type of metal that needs to be cut. The higher the tpi, the more aggressive the cut. What are the safety requirements for a hacksaw?
Full Answer
Are all hacksaw blades the same?
Although every hacksaw works in the same way, there are a number of differences in the blades that these tools use. A hacksaw is meant to be used on metal or pipe. The three types of hacksaw blades available are intended to be used on different types of metal, and it’s important to know which is the right type of blade for the job.
How to use a hacksaw properly?
While cutting thin metal sheet, packing of wood, plastic or any other appropriate material should be used in its front and back. Hacksaw blade should not be allowed to become slanting while using a hacksaw. If it becomes slating, there are chances that it may break. If the blade starts cutting in a slanting manner we should start a fresh cut.
How to cut thin metal with a hacksaw blade?
A wavy blade is the perfect hacksaw blade for cutting thin metal. If you see carefully the teeth of this blade run from right to left and left to right in a wave pattern. It gives your thin metal a smooth cut although, it is not suitable for thick and heavy metals.
What size hack saw blade do I Need?
At first glance all hack saw blades may look alike, but there actually is a difference. The number of teeth per inch differentiates one blade from the next. Which blade you choose should depend on which metal you will be cutting. For heavy-duty cutting jobs like steel reinforcing rod or pipe, an 18-teeth per inch blade would be the best choice.
What hacksaw blade should I use?
Hacksaw blades are selected by choosing the correct tpi (teeth per inch) for the type of metal that needs to be cut....How to cut metal with a hacksaw.Tpi (teeth per inch / 25mm of blade)Suggested usage14Large profiles, aluminium, softer metals18General workshop projects24Steel plate up to 5/6mm thickness32Hollow sections and steel tubing
What is the most common hacksaw blade?
12 inchThe most common blade is the 12 inch or 300 mm length. Hacksaw blades have a hole at each end for mounting them in the saw frame and the 12 inch / 300 mm dimension refers to the center to center distance between these mounting holes.
What are the 3 types of hacksaw?
Following are the main types of hacksaw blades: Course Grade Hacksaw Blade. Medium Grade Hacksaw Blade. Fine Grade Hacksaw Blade.
Why should a 32 TPI blade be used for cutting thin metal?
Fine - 32 TPI - thin metal. If a coarse tooth blade is used on thin metal, the metal will catch between the teeth and the blade will jam. For long cuts, the blade can be attached at right angles to the frame, so that the frame does not get in the way.
What are the two types of hacksaw blades?
There are two most common types of hacksaw blades are available for cutting, Carbon regular blades and high-speed steel blades. Carbon Steel blades are also known as hacksaw blades for wood, ideal for cutting wood. While high-speed steel blades are perfect for cutting hard materials such as steel and alloys.
How are hacksaw blades specified?
Hacksaw blades are specified by the number of teeth per inch (TPI) based on the pitch of teeth and they are generally of 6” to 12” in overall length.
What is the difference in hacksaw blades?
Hacksaw blades are distinguished by the pitch (frequency) of their teeth. These can vary from three relatively large teeth per inch (TPI) through to 32 TPI, ideal for very fine cutting. As a general rule, the larger the blade, the lower the number of teeth per inch.
What kind of hacksaw blade cuts metal?
What Type of Hacksaw Blade Cuts Metal? The 3 most commonly available hacksaw blades are high carbon steel, HSS, and bi-metal blades. Generally, an 18TPI (Teeth Per Inch) high speed steel (HSS) is best for cutting softer metals such as aluminum and brass while a 24TPI HSS or bi-metal blade works best on steel.
What is all hard blade?
All hard blades – hardened throughout, use for sawing hard or tough metals. Their rigidity helps in accurate sawing and they will last longer than flexible blades. However, they will shatter if used incorrectly. Teeth sizing and use. Blade teeth are usually specified by the number of teeth per inch/25mm (TPI).
What is 24 TPI for cutting?
18-24 TPI is the range of metal cutting, PVC cutting and finish cut blades. The blades cut faster then the higher TPI blades and create a smooth edge on the material, the edge is not as smooth as what a higher TPI blade would primarily cut. 24-32 TPI is the range of metal cutting, PVC cutting and finish cut blades.
Is more TPI better?
Woodworkers quickly learn that the number of teeth-per-inch (TPI) on the blade has a big impact on the quality of a cut. The general rule of thumb is "the more TPI, the smoother the cut." The true answer, however, is just a little more complicated than that, as you'll learn once you understand how saw teeth work.
Is more TPI better for metal?
Blades with higher TPI remove smaller amounts of material with each pass. Therefore they cut slower and leave a much smoother edge. Blades 12-18 TPI are typically used for metal and denser materials as well as finish cuts in wood. The 18-24 TPI range is almost always used for metal cutting.
What is the best TPI for cutting metal?
Cutting thinner metals, including sheet metal, requires a finer cut. Use 18-24 TPI bi-metal blades. For thicker metals such as steel pipe, angle irons, or tubing, use 14-18 TPI bi-metal blades. For aluminum, an 8-10 TPI blade is best.
How do I choose a hacksaw blade for different materials?
0:040:41How to Choose the Right Hacksaw Blade - YouTubeYouTubeStart of suggested clipEnd of suggested clipFor a medium duty cutting job like this thin wall electrical conduit a 24 teeth per inch blade wouldMoreFor a medium duty cutting job like this thin wall electrical conduit a 24 teeth per inch blade would be the right. Choice 32 teeth per inch is the right blade for cutting light metals like aluminum.
What kind of hacksaw blade cuts metal?
What Type of Hacksaw Blade Cuts Metal? The 3 most commonly available hacksaw blades are high carbon steel, HSS, and bi-metal blades. Generally, an 18TPI (Teeth Per Inch) high speed steel (HSS) is best for cutting softer metals such as aluminum and brass while a 24TPI HSS or bi-metal blade works best on steel.
Are all hacksaw blades the same?
Hacksaw blades are distinguished by the pitch (frequency) of their teeth. These can vary from three relatively large teeth per inch (TPI) through to 32 TPI, ideal for very fine cutting. As a general rule, the larger the blade, the lower the number of teeth per inch.
What kind of blades are used for hacksaws?
Types of Hacksaw Blades. There are two most common types of hacksaw blades are available for cutting, Carbon regular blades and high-speed steel blades. Carbon Steel blades are also known as hacksaw blades for wood, ideal for cutting wood. While high-speed steel blades are perfect for cutting hard materials such as steel and alloys.
What is a hacksaw blade?
What is Hacksaw Blade? A hacksaw is an essential tool for plumbers, carpenters, and others. Hacksaw is a cutting tool built for cutting wood, plastic, steel, and other metals. As the length of the hacksaw frame can be changed to hold blades of various sizes, it is also called an adjustable hacksaw.
How to Pick a Hacksaw?
Every hacksaw works in the same manner, the major difference comes in variations of the blades used for hacksaw tool. A hacksaw is designed for perfect cutting of wood, pipe, and metal.
What blade is best for cutting thin metal?
Wavy Blade. A wavy blade is the perfect hacksaw blade for cutting thin metal. If you see carefully the teeth of this blade run from right to left and left to right in a wave pattern. It gives your thin metal a smooth cut although, it is not suitable for thick and heavy metals.
What blades are used for metal cutting?
Hacksaw Blades For Metal Cutting. The regular hacksaw blade is the most commonly used blade for cutting soft metals. You do not need to buy this blade separately, as hardware stores offer a regular blade with a hacksaw tool. It is perfect for cutting aluminum and tintype soft metals.
What type of hacksaw blades are used for cutting metal?
Read on to learn more about different types of hacksaw blades like regular, raker, and wavy blades.
How many teeth does a hacksaw blade have?
The number of teeth (cutting edges) per inch in the hacksaw blade for metal is described by TPI. Blades usually have 14, 18, 24, 32 teeth for every 25 mm (inch).
How to choose a hacksaw blade?
How to Choose the Right Hacksaw Blade. At first glance all hack saw blades may look alike, but there actually is a difference. The number of teeth per inch differentiates one blade from the next. Which blade you choose should depend on which metal you will be cutting.
What kind of saw do I use instead of a hacksaw?
I use a mini reciprocating saw instead of a manual hacksaw. It is much faster and easier to use!
What is the best blade for cutting steel?
Which blade you choose should depend on which metal you will be cutting. For heavy-duty cutting jobs like steel reinforcing rod or pipe, an 18-teeth per inch blade would be the best choice. For a job that requires medium-duty cutting, like a thin wall electrical conduit, a 24-teeth per inch blade would do a better job.
How to choose a blade for a tubing cutting machine?
The basic rule to follow when selecting a blade for a particular job is to have 1 1/2 teeth in contact with the metal at all times. For instance: If you are cutting tubing with a 1/16" (.062") wall thickness or 1/16" thick flat stock, that is equal to 16 thicknesses per inch so the ideal blade pitch would be 24TPI (16 times 1 1/2). For smooth cutting, you must always have one tooth enter the material before the previous tooth has cleared the material. When uncertain of the correct blade pitch, use a finer pitch rather than a coarser pitch. A too fine blade pitch only cuts slower while a too coarse blade pitch tends to break blades and break teeth and generally makes a rougher cut.
How to cut a pvc pipe?
There is a scissor-action hand tool for cutting smaller diameter pvc pipe. Also another way to cut pvc pipe is with a wire saw. This is basically an 18" length of twisted wire with handles on each end. When looped around pvc and sawed back and forth rapidly, it cuts the pipe like the proverbial hot knife through butter. A great thing to have when cutting pipe installed in a wall or other situation where space is too tight for a hacksaw.
When uncertain of the correct blade pitch, use a finer pitch rather than a coarser pitch?
When uncertain of the correct blade pitch, use a finer pitch rather than a coarser pitch. A too fine blade pitch only cuts slower while a too coarse blade pitch tends to break blades and break teeth and generally makes a rougher cut. see more. −. +.
Can you cut up frozen 95% ground beef?
I use any blade I have to cut up my frozen 95% ground beef. Clean the blade it up as much as I can. Cooked the meat well. Buy it in plastic chubs.
How do hacksaw blades work?
With a regular hacksaw blade, the teeth alternate between left and right and touch each other. This can make the first few strokes difficult but once the metal has been fully scored by the teeth of the blade, the job will go quickly.
How to identify a raker hacksaw blade?
It’s easy to identify a raker hacksaw blade because the teeth are in groups of three. The blade might look strange, but it’s very effective on thick metal pieces like iron pipe.
How to cut hard metal with a hacksaw?
Where the metal is thin but not of the soft type, you’ll want to fit a wavy blade onto your hacksaw. Take a look and you’ll see where the blade gets its name as the teeth run from left to right in a wave pattern. This is intended to give a smooth cut in hard metal although you shouldn’t use it on thick metal.
What is a hacksaw used for?
Although every hacksaw works in the same way, there are a number of differences in the blades that these tools use. A hacksaw is meant to be used on metal or pipe.
Can you move a hacksaw blade left or right?
You can move them left and right or up and down. Because you can also position the blade on the posts so the teeth run in either direction, there’s a great deal of versatility in a hacksaw and the way you use the blades.
Can you use a hacksaw blade to cut iron pipe?
You’ll still need to put in a lot of work into cutting the pipe but this is definitely the right blade for the heavier jobs you’ll encounter with a hacksaw. Using a regular hacksaw blade for cutting iron pipe is just going to result in a blunt blade and plenty of frustration.
Can you use a hacksaw to cut metal?
You can use a hacksaw for cutting all types of metal. Where you have thin metal to cut, you’ll only need a blade with fine teeth. A bigger job, like a thick iron pipe, will require a blade that contains far fewer teeth on each inch of the blade.
What are the two types of hacksaw handles?
Two types of handles are used: Straight handle, Pistol type handle. Adjustable Hacksaw. Its structure may differ from a hard and fast frame in these sorts of hacksaw frames.
How to Use a Hacksaw?
A hack saw is used for cutting all kinds of metal. Where you've got the thin metal to chop, you'll only need a blade with fine teeth.
What side does a hacksaw blade go on?
Setting of Teeth. Teeth of hacksaw blades are also bent to the left or right side as the ordinary saw is used to cut wood. Bending of teeth is understood because of the setting of teeth. With these teeth setting, the hacksaw blade cuts and squeezes the metal of slightly more thickness than that of the blade.
Why do hacksaw blades bend?
Bending of teeth is understood because of the setting of teeth. With these teeth setting, the hacksaw blade cuts and squeezes the metal of slightly more thickness than that of the blade.
What is the shape of a hacksaw?
In shape, it's just like the English letter "C." On one end of those arms, a handle is fixed, and on the opposite end, a pin is set. A hacksaw blade is fitted on the pins then it's tightened consistently with the help of a wing nut. There are two types of hacksaw frames:
What is a hacksaw?
A hacksaw is a handy and user-friendly cutter that cuts objects quickly and precisely. Choosing an accurate Hacksaw Blade with the proper tooth per inch (TPI) and durable build is vital to supply easy, straight, and precise cutting.
Can a blade grind to a halt?
Therefore, due to this slot, the blade doesn't grind to a halt while operating it. If the setting isn't done, there's an excellent risk that the blade would grind to a halt within the metal and obtain broken.
What is a hacksaw blade used for?
Hacksaw blade of this type is used for cutting all kinds of metals such as cast iron, tool steel, aluminium, brass, high carbon steel etc. From 20 to 24 teeth per inch are cut in this hacksaw blade.
What should be done before starting a cut with a hacksaw blade?
Before starting a cut with a hacksaw blade, the blade should be kept on the marking line, the left-hand thumb should be placed with its support as shown in fig. It would ensure that the blade would move only on the line there would be no risk of its slip.
What is the setting of teeth on a hacksaw?
Setting of Teeth. Teeth of hacksaw blade are also bent to left or right side as in the case of ordinary saw used for cutting wood. Bending of teeth is known as the setting of teeth. With this setting of teeth the hacksaw blade cuts a slot in the metal of slightly more thickness than that of the blade.
How many dents does a hacksaw blade have?
This type of hacksaw blade is mainly used to cut thin pipes ,sheets, tubes etc. It has 24 to 30 dents per inch.
What is a flexible blade?
Flexible Blade. In blades of this nature only the cutting teeth and nearby part it hardened and tempered. But this process they become elastic and there is less risk of their being broken in the event of a shock. These blades are used for cutting thin sheets, pipes, curves etc.
How long is a hacksaw blade?
Length of hacksaw blade is generally 8″, 10″ or 12″. Dents of four different grades are cut on them.
What kind of steel is used in hacksaw blades?
On the basis of metal of the job, different types of hacksaw blades are used in a hacksaw. These are made of tungsten steel, high-speed steel and they are hardened and tempered. Their classification depends on three points:
When should you use adjustable wrenches?
Adjustable wrenches should be used only when the correct fixed wrench is not available.
What damage does overheating do to a tool?
Overheating that may have damaged the temper of the tool.
What does higher tooth count mean on a hacksaw blade?
Power hacksaw blades are available with varying tooth counts. A higher tooth count means the blade is actually finer. Softer materials will require a blade with a lower tooth count, whereas harder materials require a finer blade.
Why does my hacksaw blade overheat?
Constant motion causes power hacksaw blades to overheat, making them brittle and prone to breaking so make sure adequate coolant is being supplied to the blade. Before switching on a power hacksaw, check that the machinery is in good working order.
What to wear when you are in a knife?
Protective clothing such as overalls or aprons should be worn to prevent loose clothing from being caught in the blade. Protect your ears with adequate hearing protection such as plugs or mufflers. Also, protect your eyesight with safety glasses. Because metals can be heavy, always wear steel-toe-capped boots. 3.
How many teeth are needed to fly a shard?
At least three teeth must be in contact with the workpiece at any time or the blade will snag. This will eventually damage the teeth and flying shards can be extremely hazardous.
What to wear when cutting metal?
Because metals can be heavy, always wear steel-toe-capped boots. 3. Precautions to Take Before Cutting. Whether you are cutting pipe, sheet metal, or blocks, always make sure the material to be cut is securely fastened into clamps or a vice. Never attempt to secure materials by hand.
Can you use a hacksaw with a power hacksaw?
Personal Safety. Never attempt to use a power hacksaw until you have prepared yourself adequately for the task. Make sure that long or loose hair is tied back or covered securely. All kinds of jewelry should be removed to help eliminate the risk of snagging.
Can you cut metal with a hacksaw?
Power hacksaws are invaluable when cutting through hard or thick pieces of metal which are too substantial to cut by hand. However, as with all power tools, extra care should be taken to avoid any accidents. Observe the following safety tips and you will get the job done quickly and without incident.