Broach

A chisel is a tool for carving and/or cutting a hard material such as wood, stone, or metal. A chisel, typically made of hardened or tempered steel, or more rarely, common steel, consists of a sharpened end (called the blade) attached to a straight handle. The handle and blade of some types of chisels are made in one piece. In use, a worker forces the chisel into the material to cut the material. The driving force may be manually applied or applied using a mallet or hammer. In industrial use, a hydraulic ram or falling weight ('triphammer') d ...

Including:

• Chisel - Types
• Chisel - Woodworking chisels
• Chisel - Metalworking chisels
• Chisel - Stone chisels

Read more here: » Chisel: Encyclopedia - Chisel

Chisels have a wide variety of uses. Many types of chisels have been devised, each specially suited to its intended use. Different types of chisels may be constructed quite differently, in terms of blade width or length, as well as shape and hardness of blade. They may have wooden handles attached or may be made entirely of one piece of metal. Chisel - Woodworking chisels. Woodworking chisels range from quite small hand tools for tiny detail, to large chisels used to remove big sections of wood, in 'roughi ...

See also:

Chisel, Chisel - Types, Chisel - Woodworking chisels, Chisel - Metalworking chisels, Chisel - Stone chisels

Read more here: » Chisel: Encyclopedia II - Chisel - Types

Burrs are small cutters used in die grinders, rotary tools or dentists drills. The name may be considered appropriate when their small sized head (3mm diameter shaft) is compared to that of a burr seed. To maintain the correct surface speed and cutting conditions they are rotated at the highest speed possible, commensurate with their size and construction. The cutters shown in the image are made from tungsten carbide which allows them to run at higher speeds, than similar HSS cutters, yet still maintain their cutting edges. < ...

Read more here: » Burr cutter: Encyclopedia - Burr cutter

By confining the expensive hard cutting tip to the part doing the actual cutting, the cost of tooling is reduced. The supporting tool holder can then be made from a tougher steel better suited to the task. This makes the tooling cheaper as not all of it is affected by the immediate wear on the cutting tool and does not need to be replaced as frequently, major accidents aside. The tool holders may also be designed to introduce additional properties to the cutting action, such as Angular approach - direction of tool travel. ...

See also:

Tool bit, Tool bit - Tool holders, Tool bit - Carbides and ceramics, Tool bit - Other types

Read more here: » Tool bit: Encyclopedia II - Tool bit - Tool holders

The Gurjars of today are mainly a combination of local South Asian peoples who have absorbed some Central Asian elements over time. Many Gurjars are well represented in agriculture, the urban professions, civil service and officer class. They are now settled on large tracts of lands in northern India and Pakistan. They are known as very good farmers. The majority of the Gurjars are found in what is today Pakistan, while India has the second largest Gujar population. Now their population is about 33 million in Pakistan and 30 million i ...

See also:

Gujjar, Gujjar - Ethnic makeup, Gujjar - History, Gujjar - Later History, Gujjar - Georgian origin, Gujjar - Maharastran Gujjars, Gujjar - Caste, Gujjar - Subcastes, Gujjar - Famous Gujjars in history, Gujjar - Note

Read more here: » Gujjar: Encyclopedia II - Gujjar - Ethnic makeup

A cross hole countersink is a cone-shaped tool with a cutting edge provided by a hole that goes through the side of the cone (see picture at right). The intersection of the hole and cone form the cutting edge on the tool. The cone is not truly symmetrical as it is essential that the cone retreats away from the cutting edge as the tool rotates. If this does not occur the cutting edge will lack clearance and rub rather than bite into t ...

See also:

Countersink, Countersink - Cross hole countersink cutter, Countersink - Fluted countersink cutter

Read more here: » Countersink: Encyclopedia II - Countersink - Cross hole countersink cutter

At what time in history the very first pilot appeared on the scene is pure guesswork. Obviously, it must be associated with the earliest recognition of the necessity for safe conduct of life and property. In Biblical times pilots pursued their occupation already; see the 27th chapter of the book of Ezekiel, where the word pilot is used four times. (at least in the King James Version of the Bible; in a Netherlands ...

See also:

Pilotage, Pilotage - Etymology, Pilotage - History, Pilotage - Difficulties, Pilotage - Visual features

Read more here: » Pilotage: Encyclopedia II - Pilotage - History

The image shows a Number 4 cutter from an involute gear cutting set. There are 7 cutters (excluding the rare half sizes) that will cut gears from 12 teeth through to a rack (infinite diameter). The cutter shown has markings that show it is a 10 DP (diametrical pitch) cutter That it is No. 4 in the set that it cuts gears from 26 through to 34 teeth It has a 14.5 ...

See also:

Milling cutter, Milling cutter - Slot drills, Milling cutter - End mills, Milling cutter - Ball nose cutter, Milling cutter - Slab mill, Milling cutter - Side and face cutter, Milling cutter - Involute gear cutter, Milling cutter - Hobbing cutter, Milling cutter - Face mill carbide tipped, Milling cutter - Woodruff cutter

Read more here: » Milling cutter: Encyclopedia II - Milling cutter - Involute gear cutter

A straight reamer is used to make only a minor enlargement to a hole. The entry end of the reamer will have a slight taper, the length of which will depend on its type. This produces a self centering action as it enters the raw hole. The larger proportion of the length will be of a constant diameter. Reamed holes are used to create holes of precise circularity and size. This will allow the force fitting of locating pins, which need not be otherwise retained in the body holding them. Other holes, reamed slightly larger in other parts, ...

See also:

Reamer, Reamer - Adjustable hand reamer, Reamer - Straight reamer precision, Reamer - Hand reamer, Reamer - Machine reamer, Reamer - Rose reamer, Reamer - Shell reamer, Reamer - Tapered reamer precision, Reamer - Morse taper reamer, Reamer - Tapered reamer non-precision

Read more here: » Reamer: Encyclopedia II - Reamer - Straight reamer precision

There are currently about 360 subcastes or subtribes within the Gujjars. The more well-known of them are: Ajar / Bakarwal Awan Bajjar Bainsla Bhand (A tribe in Gujrat - Disputed whether they are Gujjars or Dalit) Bhatti (also found among Rajputs) Chauhan Chechi (see Chach) Gorsi (see Goris, Gori,Ghowr -- Gor/Gori is a Middle-Persian word for mountain/mountainous region, not white woman!) Jagal Kalas (see Kaliz-Khalis-Khalyzians of Kh ...

See also:

Gujjar, Gujjar - Ethnic makeup, Gujjar - History, Gujjar - Later History, Gujjar - Georgian origin, Gujjar - Maharastran Gujjars, Gujjar - Caste, Gujjar - Subcastes, Gujjar - Famous Gujjars in history, Gujjar - Note

Read more here: » Gujjar: Encyclopedia II - Gujjar - Subcastes

A precision tapered reamer is used to make a tapered hole to later receive a tapered pin. A taper pin is a self tightening device due to the slow angle of the taper. They may be driven into the tapered hole such that removal can only be done with a hammer and punch. They are sized by a number sequence (for example, a No.4 reamer would use No.4 taper pins). Such precision joins are used in aircraft assembly and are frequently used to join the two or more wing sections used in a sailplane. These may be re-reamed one or more times during the aircraft's useful life, with an appr ...

See also:

Reamer, Reamer - Adjustable hand reamer, Reamer - Straight reamer precision, Reamer - Hand reamer, Reamer - Machine reamer, Reamer - Rose reamer, Reamer - Shell reamer, Reamer - Tapered reamer precision, Reamer - Morse taper reamer, Reamer - Tapered reamer non-precision

Read more here: » Reamer: Encyclopedia II - Reamer - Tapered reamer precision

Poor visibility can render pilotage ineffective as a method of safe navigation. Pilotage depends on the pilot being able to recognise the visual references in order to make use of them. The pilot must either be familiar with those visual references or be able to discover them from a map, aeronautical chart or nautical chart. Many nautical and aeronautical disasters have resulted from the pilot incorrectly identifying visual references. Natural features are particularly difficult to recognise acc ...

See also:

Pilotage, Pilotage - Etymology, Pilotage - History, Pilotage - Difficulties, Pilotage - Visual features

Read more here: » Pilotage: Encyclopedia II - Pilotage - Difficulties

A face mill consist of a cutter body (with the appropriate machine taper) that is designed to hold multiple disposable carbide or ceramic tips (or inserts). These tips may be rotated within the holder to present a fresh face to the workpiece, this increases the life of the tip and thus their economical cutting life. The tips are not designed to be resharpened and are selected from a range of types that may be determined by various criteria, some of which may be: tip shape, cut ...

See also:

Milling cutter, Milling cutter - Slot drills, Milling cutter - End mills, Milling cutter - Ball nose cutter, Milling cutter - Slab mill, Milling cutter - Side and face cutter, Milling cutter - Involute gear cutter, Milling cutter - Hobbing cutter, Milling cutter - Face mill carbide tipped, Milling cutter - Woodruff cutter

Read more here: » Milling cutter: Encyclopedia II - Milling cutter - Face mill carbide tipped

Pilotage is derived from the word 'pilot' which probably comes from the word "pyl-lood". It has been rather well established that the modern term pilot originated in Holland. Prior to 1550 AD the word "loods" was used all over Europe for the profession we are discussing now. The word pilot is supposed to have been derived from the word "pyl" and "lood". The word "pyl" stands in Dutch for everything vertical or straight as well as the height of the water. The word "lood" stands for "lead"; the dense metal used when making soundings. The combi ...

See also:

Pilotage, Pilotage - Etymology, Pilotage - History, Pilotage - Difficulties, Pilotage - Visual features

Read more here: » Pilotage: Encyclopedia II - Pilotage - Etymology