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Guide to Identifying the Right Drill Bit for Your Job

Guide to Identifying the Right Drill Bit for Your Job

A drilling machine and drill bits are one of the most fundamental hardware you can have in your home toolbox considering its applicability in just about any project. Be it a quick fix to your furniture, hanging an LED TV on your wall, or even a major room upgrade, those guhring drills in your house will get it done for you. But finding the right drill bit for your purpose can be quite a daunting task. Drill bits are available in a variety of shapes, sizes, and coating materials. It helps a great deal when you know your options. Here’s a quick overview of several types of drill bit materials and their design types brought to you by MK Industrial Suppliers - leaders in industrial tool supply & dealers in guhring tools.

Common Types of Drill Bit Materials

Carbon Steel

Carbon steel bits are a bit inexpensive, but are not so firm on the hold and require frequent sharpening. They are mainly used only for drilling wood or a few soft metals. If they are overheated due to frictional heating while drilling, they may lose their temper, resulting in a soft cutting edge.

High-speed steel

HSS bits are hard and much more resistant to heat as compared to high-carbon steel. They can be used to drill metal, hardwood, and most other materials at greater cutting speeds than carbon-steel bits.

Cobalt (HSCO)

Cobalt is considered an upgrade from HSS because it includes 5-8% Cobalt blended into the base material. This is a great option for drilling into harder steel as well as stainless steel. However, they are a bit more brittle than HSS.

Carbide (Carb)

Carbide is the hardest but 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.

Types of Drill Bit Coatings

•  Black Oxide is an inexpensive black coating which helps reduce friction and increase chip flow. It also provides heat resistance and lubricity along with protection against corrosion. It is not suitable for nonferrous materials.

•  Titanium Nitride or TiN (gold color) is a very hard material used to coat a high-speed drill bit. It extends the drill life by at least 3 times. Even after sharpening, the coating provides an increased tool life.

•  Titanium Aluminum Nitride or TiALN (violet color) is similar to TiN except that it increases life by 5 times or more. It is used in high-alloy carbon steels, nickel-based materials, and titanium and not used for aluminum.

•  Titanium Carbon Nitride or TiCN (blue-gray color) is a coating superior to TiN. It is great for stainless steel, cast iron, and aluminum. It is harder and more wear-resistant than other coatings.

Design Features

•  Common drill point angles

The most common angles for drills are 118° and 135°. These angles are existent from the time when drilling was largely a manual process, and the drill bits were conventional conical shapes. The drill points found on most jobber drills are 118°. They are typically used for cutting into soft metals such as aluminum. The 135° variant, which is flatter than 118°, is best suited for hardened materials, such as stainless steel.

  Flute Design

  1. Standard – This type is the most common with 30° angles
  2. Parabolic Design - The open structure of this design helps in the removal of the chip out of the hole. These are most effective in extra soft materials like plastics and aluminum.

Everything You Need to Know About Metal Cutting Tools

Metal Cutting ToolsIt cannot be emphasized enough how cutting tools form an integral part of the machining industry. They have been around since ages and have just become more sophisticated with time. Almost every process associated with the mechanical industry such as drilling, cutting, profiling, welding, bending and milling requires some or the other sort of precision metal cutting tools. All of these tools are required to be high-grade so as to increase the productivity.

Being a part of the machining business, you must be well versed with the significance of precision tools. Moreover, as a business owner, the importance of high-grade industrial tool supply need not be stressed. But there are many out there who have minimum to no idea about the common tools and their brands. This article is all about metal cutting tools and the desired features to look for.

What is a Metal Cutting Tool?

You must have heard of Guhring drills, Guhring tools, Kyocera cutting tools, etc. These are metal cutting tools or drilling tools that serve the primary purpose of removing leftover material from a manufactured piece of metal by employing the process of shear deformation.

There are two main types of tools that are normally utilized for cutting and they are as follows:
• Single point tools
• Multi-point tools

Single point tools are majorly used to get rid of the extra material through cutting the edges during processes like shaping, plaining, turning and other related procedures. On the other hand, multipoint tools form a crucial part of processes like grinding, drilling and milling.

Features to Look Out While Buying a Tool:

• Persistence:

The first and most important quality of a tool should be persistence or resilience. It is very important to make sure that the cutting tool is harder than the material which is ultimately going to undergo the cutting process. Toughness is essential as without it the tool will not be able to withstand the heat which is produced whilst the cutting process.

• Precisely made:

The tool needs to be precisely made with the right geometry and clearance angles. This will facilitate smooth usage of the tool and also make the entire procedure efficient and beneficial.

• Should have a long shelf-life:

Normally these tools are pretty expensive and you cannot keep on investing in them again and again, hence, you need to find a reliable supplier who can provide you with tools that promise you a long and fruitful tool-life.
Now that you know what metal cutting tools are and what features you need to look for when purchasing them, you should also know where to buy them from. We at MK Industrial Suppliers are specialists when it comes to industrial tool supply. At MK Industrial Suppliers you will find a huge variety of industrial tools sourced from globally acclaimed companies. With us, you can rest assured that your hard earned money has been invested in the right place!