What do the Colours of drill bits mean?

The tip style of the bits indicates their purpose; the colors mean almost nothing.

What do the color of drill bit mean?

Yellow is X fine, Red is fine, blue is medium, green is coarse, black is extra coarse, yellow xx coarse and killer 3X coarse is pink. These colours are by international convention and will always be as per the above. This is so important to be aware of in understanding Efile bits and their uses.

What is the difference in the color for drill bits?

In most cases, the color has nothing representative with the quality of the drill bit, and they cannot be equated. Sometimes the color is just a surface treatment, sometimes the color is because of the difference in processing technology.

What are the 5 types of drill bits?

Why are some drill bits gold color?

Titanium bits look like twist bits, but they're coated in a titanium alloy. They're easily recognisable as they have a gold-coloured coating. The titanium makes the bit much harder and is slightly self-lubricating, which makes it perfect for drilling hard metals.

26 Incredible Drill Bits

Are black or gold drill bits for metal?

Black & Gold metal drill bitst are made of heavy-duty High Speed Steel for drilling into a variety of materials including plastic, wood, and metal.

Which is better carbide or cobalt?

Not only does carbide provide cutting speeds at least four to eight times that of cobalt, but far higher feedrates as well. And because carbide drills also support a feature unavailable with their cobalt cousins—coolant through-the-tool—there's no need to peck.

What are blue drill bits for?

Mach-Blue bits are engineered to drill quickly and cleanly over and over. They cut cleaner and last significantly longer than other high-quality titanium plated or cobalt bits, even when drilling dense, thick metal.

What are the drill bit codes?

The numbers 1, 2 and 3 indicate a tooth bit with 1 being used for soft formations, 2 for medium, and 3 for hard. The numbers 4, 5, 6, 7 and 8 denote tungsten carbide inserts designed for different formation hardness with 4 being softest and 8 being the hardest.

How do you tell what drill bits are for what?

To determine the size of the drill bit, you need to calculate the diameter of the hole that needs drilling. Drill bits with sizes between 1 mm and 20 mm in diameter are the most common drill bits. The drill hole size should be the same size as the screw's central core diameter or slightly smaller.

What color drill bits are for metal?

How do you know if a drill bit is for metal? Usually, drill bits that are for metal can be distinguished by their black color. They are also usually made from tungsten carbide, cobalt or titanium, which should be noted on the packaging if you're buying new.

What are black drill bits for?

Black Oxide Drill Bits – Basic and Inexpensive

This reduces friction between bit and workpiece, thereby speeding up the drilling process. Bits made with a black oxide coating are suitable for work on steel, copper, aluminum, brass, oak, maple, MDF, pine, PVC, polycarbonate, acrylic, ABS, nylon, and composite materials.

Which drill bit for wood?

What drill bit is used for wood? Generally known as a Spur point bit but also known as a wood or dowel bit, these specialised drill bits have a central point and two raised spurs that help keep the bit drilling straight. The bit cuts timber very fast when used in a power drill and leaves a clean-sided hole.

Which drill bit for metal?

Cobalt bits are able to drill through every type of metal, from aluminium to copper, brass, bronze, carbon steel, cast iron, and stainless steel. Other metal drill bit types include standard, industrial, turbo metal, titanium, and multi-purpose.

What are red tipped drill bits for?

As the name suggests, these are designed for drilling into brick, block, stone, quarry tiles or concrete. The cutting tip is often made from tungsten carbide bonded to a spiralled steel shaft.

How many 5 bit codes are there?

The Five-bit Code

Using these two states in a group of five-bits to represent each character gives a total of 32 unique combinations. You can create a list of these 32 five-bit combinations by starting with the '00000' combination first and then counting in binary until you reach the combination '11111'.

What are bits in code?

A bit (binary digit) is the smallest unit of data that a computer can process and store. A bit is always in one of two physical states, similar to an on/off light switch. The state is represented by a single binary value, usually a 0 or 1. However, the state might also be represented by yes/no, on/off or true/false.

How can you tell if a drill bit is for concrete?

The big difference between a masonry drill and a concrete drill can be seen in the tip of the drill. On a masonry drill bit the cutting head of the drill is made of hardened metal. On a concrete drill, the cutting head is a very hard Widia plate.

What are the three main types of drill bits?

What are cobalt bits for?

They are most often used to cut through hardened and abrasive materials. Cobalt bits are able to cut through the most hardened metals, including bronze, cast iron, stainless steel and titanium. They are also able to cut through weld seams.

Does it matter what drill bit you use?

The diameter of the hole you drill should be slightly smaller than the diameter of the screw. So, for example, if you're using a 3.5 mm screw, use a drill bit with a diameter of 3 mm. If you're using wall anchors as well as screws, the drill bit and anchors should have the same diameter.

What drill bit lasts the longest?

Titanium (Coating)

This type of drill bit lasts longer than black oxide. Titanium drill bits tend to drill faster than black oxide and chips move through the flutes better. One of the downsides is that the titanium nitride is just a coating and you lose the benefits as the coating wears off the cutting edges.

What is the hardest drill bit for drilling metal?

Carbide (Carb) is the hardest and most brittle of the drill bit materials. It's used mostly for production drilling where a high-quality tool holder and equipment is used. It should not be used in hand drills or even drill presses. These drill bits are designed for the most demanding and hardest materials.