What is a drill bit set used for?

What is a drill bit set used for?

Drill bits are designed to drill holes in a variety of different common materials. These include different types of wood, metal, plastic, ceramic tile, porcelain and concrete. Drill bits made for steel, aluminum, copper, cast iron, sheet metal, fiberglass, brick, vinyl flooring and more are also available.

What are the parts of a drill bit?

Parts of Drill Bit

• Body.
• Point.
• Shank.
• Tang.
• Flutes.
• Land.
• Body Clearance.
• Web.

What is DTH equipment?

A down-the-hole drill, usually called DTH by most professionals, is basically a jackhammer screwed on the bottom of a drill string. The fast hammer action breaks hard rock into small cuttings and dust that are evacuated by a fluid (air, water or drilling mud).

How many types of drill bits are there?

Drill bits are generally classified as Twist Drill, Counterbore, Countersink, Flat Bottom Boring, and Specialty. On our web site we have divided these into two categories: Drill Bits – Normally used with hand held drills or drill presses fitted with standard chucks.

What is the classification of drill bit?

What is the name of drill bit?

A unibit (often called a step drill bit) is a roughly conical bit with a stairstep profile. Due to its design, a single bit can be used for drilling a wide range of hole sizes. Some bits come to a point and are thus self-starting. The larger-size bits have blunt tips and are used for hole enlarging.

What angle is a drill bit?

A drill bit has two cutting surfaces, one on each side of its center axis, that are cut at an angle of approximately 60 degrees. The parts of a drill bit.

What is the land of a drill bit?

Land — The outer portion of the body between two adjacent flutes. Lip Relief Angle — The relief angle at the outer corner of the lip. Margin — The narrow portion of the land which is not cut away to provide clearance. It stabilizes the drill in the hole.

What is top hammer drilling?

In Top Hammer Drilling the hammer produces a percussive force on the drill rods or tubes, which is transmitted to the drill bit. The feed device is usually attached with a hinged boom to a mobile unit. Top hammer drills are primarily used in mining, construction and quarrying of rock material.

What are the best quality drill bits?

Drill bits are 5% cobalt (3018002), IRWIN has 3018002b bits which are cobalt 8% (better, but more expensive). Cobalt alloy is heat and abrasion-resistant. These are the best quality drill bits for making holes in stainless steel.

What is a standard drill bit?

Drill bits come in standard sizes, described in the drill bit sizes article. A comprehensive drill bit and tap size chart lists metric and imperial sized drill bits alongside the required screw tap sizes. There are also certain specialized drill bits that can create holes with a non-circular cross-section.

What does drill bit mean?

Drill bit. Drill bits are cutting tools used to create cylindrical holes, almost always of circular cross-section. Bits are held in a tool called a drill, which rotates them and provides torque and axial force to create the hole.

What is the most common drill bit size?

The most common drill sizes I use range from 2-10mm. I bought a set and just replace the worn ones as necessary. A set of drill countersink bits is also really handy for finish carpentry work. Using a drill and countersink bit prevents the wood from splitting when burying the screw head enough for it to be filled over by the decorators.