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Technology page is shared the experience of technical talent in field of drill bit grinder, help you to resolve the technical difficulties, and makes you into a specialist of drill bit re-grinder.

Some tips for how to sharpen large and small drill bit

Whether large or small, every drill bit will get dull after some time of normal use. Using a drill bit with blunt edges is not an efficient way of working, as the dullness makes the work more difficult and longer, may cause accidents which can damage the material being worked upon, and may even lead to serious injuries. This is why you must ensure your cutting surfaces are always in the best condition to make your work faster, and neater. In this piece, we will talk about how to sharpen the cutting edges of a drill bit. While there are different types of bit tips, let’s take a look at how to sharpen a chisel-tipped drill bit.

A drill bit comes with two cutting surfaces, placed side by side on its center, with both cut at an angle 60 degrees.

If you check a chisel-tip drill bit, you will find that the angleed surfaces also have another plane which is the result of cutting them at a very narrow angle. It is this plane that forms the cutting edge of the drill bit, and a space between the drill bit and the metal being drilled so that the metal doesn’t impede the movement of the bit, thereby reducing friction and drag. This is known as the relief area plane

The helical groove on the drill bit is known as a flute. It helps to channel the cut material out of the hole created as the drill bit works.

When you want to sharpen the drill bit, you sharpen the two angled area that creates a space between the metal and the drill bit, i.e., the relief area plane. You must ensure both planes have the same angles to maintain the consistency of the drill bit after sharpening. You will expose the cutting edges to the drill bit grinder to remove a small amount of metal from the two surfaces.

After arranging your grinder for the task, then insert the dull drill bit in a screw. Now, brace the mandrel against the bench pin and position the bit on the relief angle for sharpening.

Now, carefully lower the separating disk of the grinder so that it makes contact with the area to be sharpened. Do the same for the opposite relief area angle without changing the angle. After completing this process, your drill bit is now sharpened and can take on new tasks.Continue reading→

Best Drill Bit Sharpener Buying Guide

When you have been using your drill bits for a fairly long time, you will often realize that they are bound to wear out. When this happens, your first instinct will be to get a new set but is that decision always cost effective?
Drill Bit Sharpener Buying Guide, drill bit sharpener, best drill bit sharpener manufacturer
No of course, because there are various ways available to sharpen the bits and prolong their use. The most common of them are high-quality sharpeners in the market. All you need is to do a little homework to be sure you settle for the best. Let us consider some of the factors to consider when looking for a drill bit sharpener.
PURROS drill bit grinder product technical guidance and development drill bit grinding machine manufacturer

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The technology behind the drill bit grinder

A drill bit is a tool used for boring holes in various materials. Drill bit grinders are therefore used for grinding twist drill bits. One of the main reasons for using drill bits to grind is because of the accuracy of the drills. The drilling also does not require any special skill. That is how much of an efficient tool it is. The good thing about drill bit grinders is that they can drill hardwood and also metal as well. These are some of the reasons why the drill bit grinders are able to withstand and drill some of the toughest materials.

Drill Re-sharpener, Drill Bit Grinding Machine Manufacturers, drill bit grinderContinue reading→

Straight shank jobber length twist drills definitions

Drill bits, Twist drills, Twist drill bits, Jobber length drill bit, end cutting tools, cutting fluids, Screw machine length drill bit, Straight Shank Drills, Taper Shank Drills, Taper length drill bit, high speed steel, HSS, drill bit grinder

Drill bits: Drill bits are tools to cut cylindrical holes on workpiece. Drill bits are generally used with drills to create a hole. The shank of the drill is holded by the chuck of a drilling machine.

Jobber length drill bit: Straight shank drills suitable for general purpose applications.The length of the flutes is between nine and fourteen times the diameter of the drill.

Twist drill bits are generally produced from high speed steel (HSS), cobalt steel alloys and tungsten carbide. Coatings are applied to drill bits to extend the life of the bit. Black oxide, titanium nitride and titanium aluminum nitride are coatings which are generally applied to drill bitsContinue reading→

The sizes of the metric drill bits

Are you looking for the size of the metric drill bit?
Here is a detailed introduction. We hope we can help you. If you have a problem with the drill bit, you can also use our drill bit grinder to repair it. The size of various drills can be repaired by corresponding drill bit grinding machines.

Are you looking for the size of the standard bit? Here is a detailed introduction. We hope we can help you. If you have a problem with the drill bit, you can also use our drill bit grinder to repair it. The size of various drills can be repaired by corresponding drill bit grinding machines.

Metric drill bit sizes define the diameter of the bit in terms of standard metric lengths. Standards organizations define sets of sizes that are conventionally manufactured and stocked. For example, British Standard BS 328 defines sizes from 0.2 mm to 25.0 mm.Continue reading→

Wood drill bits: spoon bits

Identical spoon bits are made use of mainly for uninteresting openings in the seat of a Windsor chair to take the back pins, or comparable round-tenon job when putting together furnishings frameworks in environment-friendly woodworking job.

When reaming a pre-bored straight-sided opening, the spoon bit is put right into the opening and also revolved in a clockwise instructions with a woodworkers’ support till the preferred taper is accomplished. When burning out right into strong timber, the little bit ought to be begun in the upright setting; after a “recipe” has actually been developed as well as the wood bit has actually started to “attack” right into the timber, the angle of boring could be transformed by turning the support a  wood drill bit from the upright. Openings could be pierced specifically, easily and also swiftly in any type of timber, at any kind of angle of occurrence, with overall control of instructions and also the capacity to transform that instructions at will.

Spoon bits are the conventional boring devices utilized with a support. They need to never ever be made use of with a power drill of any kind of kind. Their vital benefit over normal support bits and also power drill bits is that the angle of the opening could be changed. This is crucial in chairmaking, since all the angles are generally eyeballed. One more benefit is that they do not have a lead screw, so they could be pierced efficiently in a chair leg without having the lead screw peek out the opposite.

The spoon bit might be developed using a slipstone on the within the cutting edge; the outdoors side ought to never ever be touched.

Spoon bits contain a grooved shank with a factor formed rather like the dish of a spoon, with the cutting edge on completion. The even more usual kind resembles a cut little bit that finishes in a minor factor. This is practical for beginning the opening, as it has a facility that will certainly not stray or stroll. These little bits are made use of by chair-makers for boring or reaming openings in the seats and also arms of chairs. Their style is old, returning to Roman times. Spoon bits have actually also been discovered in Viking excavations. Modern spoon bits are made from hand-forged carbon steel, very carefully heat-treated and afterwards hand ground to a great side.

Wood drill bits: Lip and spur drill bits

Lip and spur drill bits are generally readily available in sizes from 3-16 mm (0.12– 0.63 in).

Conventional twist drill bits have the tendency to roam when offered to a level workpiece. For metalwork, this is responded to by piercing a pilot opening with a spotting drill bit. In timber, the lip and also stimulate drill bit is one more remedy: The centre of the drill bit is provided not the straight carve of the twist drill bit, however a spur with a sharp factor and also 4 sharp edges to reduce the timber. The sharp factor of the spur merely presses right into the soft timber to maintain the drill bit in line.Continue reading→

What is the cutting edge of a cutting tool?

The cutting edge of a cutting tool is a crucial for the efficiency of the reducing procedure. The highlights of the cutting edge are:

Cutting edge distance for symmetrical sides.
Cutting edge ellipse axis for uneven sides.
Factor K, this is the releation in between Sγ and also Sα. This could likewise be determined by the proportion of both axis of the ellipse. This element explains the kind of the cutting edge.

3 angles: clearance angle, wedge angle, rake (breaking) angle.
Δr.Continue reading→