Jobber drill bits are designed for general purpose drilling, while mechanics drill bits are designed for more precise drilling applications, such as creating smaller diameter holes with greater accuracy.
Jobber drill bits typically have a longer overall length and a wider diameter than mechanics drill bits, making them better suited for drilling into larger, thicker materials. Jobber drill bits also have a twist rate that helps them quickly remove large amounts of material when drilling.
Mechanics drill bits on the other hand, feature a shorter overall length and a smaller diameter, making them better suited for drilling into thinner materials like metal sheets, plastic and aluminum.
Mechanics drill bits also have a smaller twist rate, which helps them create more precise and accurate holes with a cleaner finish. Additionally, mechanics drill bits feature special points, such as split points and brad point tips, which are designed to help prevent walking when starting the drill and provide better control over the drilling speed.
What is a jobber tool?
A jobber tool is a type of power tool used for drilling and driving screws. They are typically a hand-held device consisting of a pistol grip, trigger and a rotating assembly with several interchangeable bits.
Jobbers drills and screwdrivers are used for a variety of applications such as drilling and fastening in metal, wood, masonry, plastic, and drywall. Jobber tools are often used in automotive and construction environments and may feature over 400 different accessory heads.
Jobber tools can come with a variety of features such as variable speed, power or torque selections and electric brakes for added convenience. Additionally, some jobber tools can also be used for mixing and stirring applications.
Overall, jobber tools provide a practical and versatile solution for a variety of drilling and fastening applications.
What is jobber series drill?
The Jobber Series Drill is a type of long-length drill bit designed for drilling holes in hard-to-reach areas. These types of drills are designed to reach further than standard length drills and are commonly used in the automotive, aviation and other industrial markets.
The jobber series drill is typically used in applications such as the drilling of deep holes in the bulkheads of cars and trucks, and for drilling holes for wiring and other applications in the tight corners of aircraft.
The jobber series drill bit is also used for drilling in irregular materials that require precision and longer reach. Generally, these types of drills are constructed from high speed steel, cobalt, and carbide for better wear performance and have efficient cutting geometries that allow for superior performance in difficult to reach materials.
The Jobber series drill bits are available in many different lengths, shank designs, and head geometries so they can be utilized in a wide range of applications.
What are the 5 types of drill bits?
The five main types of drill bits are twist drill bits, spade drill bits, masonry drill bits, step drill bits, and countersink bits.
Twist drill bits are the most common type, and the most basic. They have a straight point and two cutting edges. These bits can handle drilling through a variety of materials, including wood, metal, plastic, and tile.
Spade drill bits are used for drilling large holes in wood, and are used for rough cutting. They have a wide, flat tip, and typically have a single cutting edge.
Masonry drill bits have a specially hardened tip and wide flutes for drilling through brick, stone, and concrete. Sometimes referred to as “concrete drill bits,” they also come with a variety of shank sizes and flute lengths.
Step drill bits are also commonly used to drill holes in metal, and feature a two-fluted spiral design. The tip is stepped in size and can be used to drill larger and larger holes in metal.
Countersink bits are designed to create beveled holes—or a countersink—in the top of a material. This can help sink the head of a screw into the material, ensuring a flush finish. Countersink bits typically have three cutting edges.
What drill bits are for stainless steel?
Drill bits for stainless steel should be made of high-speed steel (HSS) or cobalt. HSS offers the best combination of strength and heat resistance of any commonly available steel for drill bits. They are ideal for drilling into stainless steel and also work well with other materials, including aluminum, brass, plastics and wood.
For the best results, use a split point bit, which has a point at the tip that is split in two. This is designed to create less friction when drilling, reducing the amount of heat generated by the drill and making it easier to penetrate the stainless steel.
If the bit is kept cool while drilling, it will help to reduce friction and prevent the bit from becoming too hot and possibly melting or warping the material. Additionally, choosing a bit size that is slightly smaller than the hole being drilled will help to reduce friction and allow for smoother drilling.
Who makes the cobalt drill bits?
Cobalt drill bits are made by a variety of different manufacturers. Popular companies that produce cobalt drill bits include Bosch, DeWalt, Irwin, Milwaukee, and Makita. The bits are also available from third-party retailers like Amazon, The Home Depot, and Lowe’s.
Each manufacturer offers a variety of sizes and styles, from general purpose drill bits designed for everyday use to specialized bits designed to cut through tougher materials like stainless steel and hard metals.
Before purchasing the bits, be sure to select the appropriate size, length, and shank for your application. Depending on the type and quantity of drill bits you need, it’s often a good idea to purchase several different sizes and styles in order to have the right bit for any job.
How many types of drill bits are there?
Some of the most commonly used types of drill bits include twist drill bits, masonry drill bits, spade bits, forstner bits, stepped drill bits, brad point bits, specialty drill bits, and hole saws.
Twist drill bits are designed for drilling into metal and often come in metric or imperial sizes. They are typically made from high-speed steel, cobalt, or titanium, and have a spiral shape.
Masonry drill bits are designed for drilling into materials like concrete, brick, and stone. They usually have a pointed tip, and the shank is designed to prevent it from slipping or turning in the material.
Spade bits are designed for drilling into wood and have a flat end that looks like a large screwdriver. The bit is designed to allow wood chips to quickly and easily be removed from the hole.
Forstner bits are specifically designed for drilling deeply and precisely into wood. They have a lever-like shape and are used for making different types of holes.
Stepped drill bits have different-sized cones on the end and are used to drill both shallow and deep holes.
Brad point bits are designed to drill small, precise holes in wood. They have a pointed center tip that keeps them from drifting when they are being used.
Specialty drill bits are designed for a specific purpose, such as counter-sinking or reaming.
Hole saws are designed to cut large holes in walls, pipes, and metal. They usually consist of a metal drill bit attached to a cylinder with serrated edges.
In conclusion, there are many different types of drill bits depending on the material being drilled and the type of hole needed.
How can I tell what type of drill bit I have?
One way to determine the type of drill bit that you have is to identify the shape or contour of its cutting edges. Common types of drill bits include twist drill bits, which have a cylindrical shaft with helix-shaped flutes; brad-point drill bits, which have a sharp center point and two cutting edges that form an angle; spade or paddle drill bits, which have a long shaft and a flat tip; and auger drill bits, which have a long, cylindrical shaft and a pointed tip.
Additionally, the type of drill bit can be determined by the material it is made of. For example, twist drill bits can be made of high-speed steel (HSS), carbide, cobalt, titanium, or diamond.
In summary, you can determine the type of drill bit you have by looking at its shape and the material it is made of.
How are drill bit sizes measured?
Drill bit sizes are measured using a system of diameter measurements called the American Wire Gauge (AWG) system. This system determines the diameter of a drill bit by the number of its wire gauge designation.
The smaller the wire gauge number, the larger the diameter of the drill bit. Drill bits can range from 0 gauge (the largest) to 44 gauge (the smallest). Each number signifies a decrease in diameter of 1/32 of an inch.
For example, a 1/4 inch drill bit is designated as 10 gauge, while an 7/64 inch drill bit would be 16.5 gauge.
How long is jobber length?
Jobber length is typically around 80-90mm blade length. This type of blade length is usually used for piercing and corner cutting applications. It is long enough to provide good visibility and control when cutting, but short enough that it remains light and easy to use.
Additionally, jobber length blades often have narrower or curved points, making them ideal for detail work. This type of blade length is commonly found on knives, chisels, and scissors.
What size drill bit is close to 27 64?
A 27/64 inch drill bit is typically the closest size drill bit available and is typically used when drilling a slightly larger hole than a standard 1/4 inch bit. It is a fractional size drill bit, so it is slightly more specialized than a standard 1/4 inch bit and may require a special type of drill bit.
27/64 is also about 4.26 mm, so for metric drill bit sizes you would use a 4.3 mm bit.
What lengths do drill bits come in?
Drill bits come in a variety of lengths for different drilling applications. Common lengths range from 1/4″ up to 6″, although longer-length drill bits are also available for deeper drilling jobs. The length of the drill bit is determined by the depth of the material it is drilling into and the application it is used for.
Short length drill bits provide shallow depth drilling applications while longer length drill bits are required for deep drilling applications. Longer length bits also help to prevent material from clogging the drill bit due to the larger helix flute used on them.
Generally, most drill bits designed for home use or professional construction use range between 1-1/2” and 6” in length.