Steel: The “Welding steel” at Tractor Supply/ Lowes/ Home Depot is mild steel and useless for knives Buy new, known, annealed blade steel. Use commercial quench oil & match oil speed to the steel type Here is a good post by Kevin Cashen with the Explanation and classification of oil speeds. For heat treating yourself with minimal equipment, find a Eutectoid steel 1080, 1084.
1×30 grinder has a 1-inch wide belt that is 30 inches in circumference, a 2×72 has a 2-inch wide belt, that is 72 inches in circumference. A wider belt exerts more friction on the flat platen of a machine, needing more power and a longer belt allows for less time between belt changes but will also demand extra power. A 2×72 grinder runs best with a motor of 2hp. But a 1×72″: grinder would grind great with only 1hp. When you reduce your belt length, you also reduce the demand on the motor which is why our 2×48″ machines are supplied with a 1.5hp motor.
In this blog, we’ll review belt grinders used for knife making and how to use them to deliver superior-quality blades. Some knife makers like to start with an angle grinder for the initial profiling before moving to a belt grinder, but you can use a belt grinder for the whole grinding process. If you decide to use your belt grinder instead of an angle grinder to shape the outline of the blade, you’ll want to ensure you have some form of flat surface to set the metal on while grinding.
what size angle grinder for knife making Related Question:
How do I know what size angle grinder I need?
When you begin to look at angle grinders, you will need to decide on what size disc you will require, with the two most common sizes being 4.5” (115mm) and 9” (230mm). The size of the disc determines the depth of the cut possible, so larger jobs will require larger discs.
What is a 4 1 2 angle grinder used for?
The 4-1/2 inch angle grinder is a brutal handheld power tool that can cut through anything from metalwork, mild steel, brickwork, and even cut tiles.
What grinder is used on forged in fire?
The mechanical engineering degree paid off when he designed the TW-90 vertical/horizontal grinder, known to many as the “Cadillac of belt grinders.” It’s Travis’ brainchild, and it was an industry game-changer when it comes to finishing knives.
How deep can a 125mm angle grinder cut?
All in all, 125mm angle grinders are extremely versatile tools despite their limited cutting depth of just 38 mm. While 115mm angle grinders offer a maximum cutting depth of only 30 mm, they are precise, easy to handle and lighter than larger versions.
What is the most popular size angle grinder?
The most commonly used sizes are the 4” and 4 ½”. These grinders typically have the capacity for wheel diameters of up to 7”, with particularly small versions having the capacity for 3” discs.
Can I use bigger disc on angle grinder?
Fitting a 14 inch (356 mm) cut-off disc to a 9 inch (230 mm) angle grinder will increase the edge speed excessively to at least 120 m/s (430 kmph). The photograph below shows an angle grinder with the wrong size cutting disc fitted and the guard removed.
What is a knife grinder?
Definition of knife grinder 1 : one that grinds knives: such as. a : an itinerant tradesman who sharpens knives or other edged tools. b : a device (as a grindstone or emery wheel) used for grinding or sharpening knives or other edged tools.
Can you make a knife without a forge?
Forging isn’t necessary to make a knife, nor will it produce a better blade (at least at the novice to intermediate skill level). Whether your goal is to devote many years to mastering the art of forging blades or you just want to hit hot steel, forging is great fun.
How deep can you cut with a 4.5 inch angle grinder?
A 4.5 angle grinder has a blade that is 4.5-inches in diameter. This means the blade extends 2.25-inches for the center in each direction. As a result, it is not physically able to cut through 4 inch concrete. Select a larger grinder when a deep cuts are necessary, such as a 9-inch grinder.
Do all angle grinder discs fit?
Angle grinders discs are interchangeable, which means you can select the specific size of disc for your grinder and the specific type of disc for the type of material you are looking to cut or grind. There is a wide range of different types of discs available for an angle grinder.
Can you use a cut off wheel on an angle grinder?
Usages. You can use cut-off discs for cutting metal bars, metal tubes and small pieces of metal sheets and plates. You can also cut out welds with them. For shortening the length of various bolts, it is also a good idea to use an angle grinder and a cut-off wheel.
What belt grinder does Jason Knight use?
Why Does Jason Knight Use Red Label EdgeCore Ceramic Belts? Jason has been using Red Label’s EdgeCore Ceramic belts for some time now. He grinds with the 2 x 72 belts, alternating between 36 and 60 grit to shape his blades.
What Forge does Jason Knight use?
Master Bladesmith Jason Knight – Knight Forge Studio.
Do you push or pull when sharpening a knife?
Remember to always cut into the stone and never pull or drag your edge backwards. The blade edge should face in the same direction as your stroke. So, you’re essentially moving the metal away from the edge.
How do pros sharpen knives?
Most of the knives are sharpened with my two main methods; the WickedEdge system or the Tormek, but there are exceptions even to these two methods. For most knives, I use the Tormek slow wet grinding sharpening system. The wheel on this system only rotates at 90 rpm. I use two Tormek machines in my process.
