Plane (tool)

Roman planes found in Germany, dating to the 1st to 3rd century AD

Hand planer

Hand planer bottom

Hand planes are ancient, originating thousands of years ago. Early planes were made from wood with a rectangular slot or mortise cut across the center of the body. The cutting blade or iron was held in place with a wooden wedge. The wedge was tapped into the mortise and adjusted with a small mallet, a piece of scrap wood or with the heel of the user's hand. Planes of this type have been found in excavations of old sites as well as drawings of woodworking from medieval Europe and Asia. The earliest known examples of the woodworking plane have been found in Pompeii although other Roman examples have been unearthed in Britain and Germany. The Roman planes resemble modern planes in essential function, most having iron wrapping a wooden core top, bottom, front and rear, and an iron blade secured with a wedge. One example found in Cologne has a body made entirely of bronze without a wooden core.[1] A Roman plane iron used for cutting moldings was found in Newstead, England.[2] Histories prior to these examples are not clear although furniture pieces and other woodwork found in Egyptian tombs show surfaces carefully smoothed with some manner of cutting edge or scraping tool. There are suggestions that the earliest planes were simply wooden blocks fastened to the soles of adzes to effect greater control of the cutting action.

In the mid-1860s, Leonard Bailey began producing a line of cast iron-bodied hand planes, the patents for which were later purchased by Stanley Rule & Level, now Stanley Works. The original Bailey designs were further evolved and added to by Justus Traut and others at Stanley Rule & Level. The Bailey and Bedrock designs became the basis for most modern metal hand plane designs manufactured today. The Bailey design is still manufactured by Stanley Works.

In 1918 an air-powered handheld planing tool was developed to reduce shipbuilding labor during World War I. The air-driven cutter spun at 8000 to 15000 rpm and allowed one man to do the planing work of up to fifteen men who used manual tools.[3]

Modern hand planes are made from wood, ductile iron or bronze which produces a tool that is heavier and will not rust.

Bench plane (top), block plane (below)

A modern milled chipbreaker secured atop a bench plane iron

The standard components of a hand plane include:

• A: mouth; an opening in the sole of the plane through which the blade extends, and through which wood shavings rise.
• B: iron; a steel blade which cuts the wood.
• C: lever cap; secures the cap iron and iron firmly to the frog.
• D: depth adjustment knob; controls the cutting depth of the iron.
• E: knob; allows a second hand to guide the plane.
• F: cap iron or chipbreaker; reinforces the iron and curls and breaks apart wood shavings as they pass through the mouth.
• G: lateral adjustment lever; skews the iron so that the depth of cut is uniform across the mouth.
• H: tote; the principal handle for gripping the plane.
• I: cam lever; which pivots a sliding section of the forward end of the sole to adjust the gap in the plane's mouth. It is anchored to the threaded post of the knob and secured by tightening the knob.
• J: frog ; an adjustable iron wedge that holds the plane iron at the proper angle and allows it to be varied in depth relative to the sole. The frog is screwed down to the inside of the sole through two parallel slots and on many planes is only adjustable with a screwdriver when the plane iron is removed. Some planes, such as the Stanley Bedrock line and bench planes made by Lie-Nielsen and WoodRiver/Woodcraft have a screw mechanism that allows the frog to be adjusted without removing the blade.
• sole; the bottom face of the plane.

Router plane

Most planes fall within the categories (by size) of block plane, smoothing plane, and jointing plane. Specialty planes include the shoulder plane, router plane, bullnose plane, and chisel plane, among others.

Electrically powered hand planers (loosely referred to as power planes) have joined the hand-held plane family.

"Bench planes" are characterized by having their cutting bevel facing down and attached to a chipbreaker. Most metal bench planes, and some larger wooden ones, are designed with a rear handle known as a tote. "Block planes" are characterized by the absence of a chipbreaker and the cutting iron bedded with the bevel up. The block plane is a smaller tool that can be held with one hand which excels at working against the grain on a cut end of a board. It is also good for general purpose work such as taking down a knot in the wood, smoothing small pieces, and chamfering edges.

Different types of bench planes are designed to perform different tasks, with the name and size of the plane being defined by the use. Bailey iron bench planes were designated by number respective to the length of the plane. This has carried over through the type, regardless of manufacturer. A No. 1 plane is but little more than five inches long. A typical smoothing plane (approx. nine inches) is usually a No. 4, jack planes at about fourteen inches are No. 5, an eighteen-inch fore plane will be a No. 6, and the jointer planes at twenty-two to twenty-four inches in length are No. 7 or 8 respectively. A designation, such as No. 4½ indicates a plane of No. 4 length but slightly wider. A designation, such as 5-1/2 indicates the length of a No. 5 but slightly wider (actually, the width of a No. 6 or a No. 7), while a designation, such as 5-1/4 indicates the length of a No. 5 but slightly narrower (actually, the width of a No. 3). "Bedrock" versions of the above are simply 600 added to the base number (although no "601" was ever produced, such plane is indeed available from specialist dealers; 602 through 608, including all the fractionals, were made).

Order of use

Stanley No. 32 transitional jointer plane (26 inches long)

A smoothing plane

A Japanese plane in use

A typical order of use in flattening, truing, and smoothing a rough sawn board might be:

• A scrub plane, which removes large amounts of wood quickly, is typically around 9 inches (230 mm) long, but narrower than a smoothing plane, has an iron with a convex cutting edge and has a wider mouth opening to accommodate the ejection of thicker shavings/chips.
• A jack plane is up to 14 inches (360 mm) long, continues the job of roughing out, but with more accuracy and flattening capability than the scrub.
• A jointer plane (including the smaller 14 to 20 inches (360 to 510 mm)[4] fore plane) is between 22 and 30 inches (560 and 760 mm)[4] long, and is used for jointing and final flattening out of boards.
• A smoothing plane, up to 10 inches (250 mm) long, is used to begin preparing the surface for finishing.
• A polishing plane (kanna) is a traditional Japanese plane designed to take a smaller shaving than a Western smoothing plane to create an extremely smooth surface. Polishing planes are the same length as western smoothing planes, and unlike Western planes, which are pushed across a board, is pulled with both hands towards the user.

Special purposes

Stanley No. 92 rabbet plane

Some special types of planes include:

• The rabbet plane, also known as a rebate or openside plane, which cuts rabbets (rebates) i.e. shoulders, or steps.
• The shoulder plane, is characterized by a cutter that is flush with the edges of the plane, allowing trimming right up to the edge of a workpiece. It is commonly used to clean up dadoes (housings) and tenons for joinery.

Stanley No. 78 fillister plane

• The fillister plane, similar to a rabbet plane, with a fence that registers on the board's edge to cut rabbets with an accurate width.
• The moulding plane, which is used to cut mouldings along the edge of a board.
• The grooving plane which is used to cut grooves along the edge of a board for joining. Grooves are the same as dadoes/housings but are being distinguished by running with the grain.
• The plow/plough plane, which cuts grooves and dadoes (housings) not in direct contact with the edge of the board.
• The router plane, which cleans up the bottom of recesses such as shallow mortises, grooves, and dadoes (housings). Router planes come in several sizes and can also be pressed into service to thickness the cheeks of tenons so that they are parallel to the face of the board.
• The chisel plane, similar to a bullnose plane, but with an exposed blade which allows it to remove wood up to a perpendicular surface such as from the bottom inside of a box.

Finger planes. Note the size.

• The finger plane, which is used for smoothing very small pieces such as toy parts, very thin strips of wood, etc. The very small curved bottom varieties are known as violin makers planes and are used in making stringed instruments.
• The bullnose plane has a very short leading edge, or "toe", to its body, and so can be used in tight spaces; most commonly of the shoulder and rabbet variety. Some bullnose planes have a removable toe so that they can pull double duty as a chisel plane.

Stanley No. 55 combination plane

• The combination plane, which combines the function of moulding and rabbet planes, which has different cutters and adjustments.
• The circular or compass plane, which utilizes an adjustment system to control the flex on a steel sheet sole and create a uniform curve. A concave setting permits great control for planing large curves, like table sides or chair arms, and the convex works well for chair arms, legs and backs, and other applications. The compass plane, which has a flexible sole with an adjustable curve and is used to plane concave and convex surfaces. Typically used in wooden boat building.
• The toothed plane, which is used for smoothing wood with irregular grain.[5] and for preparing stock for traditional hammer veneering applications.
• The spill plane which creates long, spiraling wood shavings or tapers
• The spar plane, which is used for smoothing round shapes, like boat masts and chair legs.[6]
• The match plane, which is used for making tongue and groove boards.[7]
• Hollows and Rounds are similar to moulding planes, but lack a specific moulding profile. Instead, they cut either a simple concave or convex shape on the face or edge of a board to create a single element of a complex-profile moulding. They are used in pairs or sets of various sizes to create moulding profile elements such as fillets, coves, bullnoses, thumbnails ovolos, ogees, etc. When making mouldings, hollows and rounds must be used together to create the several shapes of the profile. However, they may be used as a single plane to create a simple decorative cove or round-over on the edge of a board. Many of these hollows and rounds can be classified in the category of side-escapement planes.

Planing with the grain and against the grain

Planing wood along its side grain should result in thin shavings rising above the surface of the wood as the edge of the plane iron is pushed forward, leaving a smooth surface, but sometimes splintering occurs. This is largely a matter of cutting with the grain or against the grain respectively, referring to the side grain of the piece of wood being worked.

The grain direction can be determined by looking at the edge or side of the work piece. Wood fibers can be seen running out to the surface that is being planed. When the fibers meet the work surface it looks like the point of an arrow that indicates the direction. With some very figured and difficult woods, the grain runs in many directions and therefore working against the grain is inevitable. In this case, a very sharp and finely-set blade is required.

When planing against the grain, the wood fibers are lifted by the plane iron, resulting in a jagged finish, called tearout.

Planing across the grain is sometimes called "traverse" or "transverse" planing.

Planing the end grain of the board involves different techniques and frequently different planes designed for working end grain. Block planes and other bevel-up planes are often effective in planing the difficult nature of end grain. These planes are usually designed to use an iron bedded at a "low angle," typically about 12 degrees.

• Card scraper
• Cheese slicer, a culinary plane-like tool
• Planer (disambiguation) for other types of planing tools and machines
• Shooting board
• Spokeshave
• Buswartehobel, a plane-shaped bus stop shelter in Zachenberg

• Greber, Josef M. (1956, reprinted 1987) Die Geschichte des Hobels. Von der Steinheit bis zur Enstehung der Holzwerkzeugfabriken im frühen 19. Jahrhundert, Zurich, reprinted Hanover: Verlag Th. Schäfer. OCLC 246467323.
• Greber, Josef M., transl. by Seth W. Burchard (1991) The History of the Woodworking Plane from the Stone Age to the Development of Woodworking Factories in the Early 19th Century. Albany, NY: Early American Industries Association. OCLC 602189643.
• Hack, Garrett (1997) The Handplane Book. ISBN 1-56158-155-0.
• Hoadley, R. Bruce (2000) Understanding Wood: A Craftsman’s Guide to Wood Technology. ISBN 1-56158-358-8.
• Russell, David R., with Robert Lesage and photographs by James Austin, cataloguing assisted by Peter Hackett (2010) Antique Woodworking Tools: Their Craftsmanship from the Earliest Times to the Twentieth Century. Cambridge: John Adamson. ISBN 978-1-898565-05-5. OCLC 727125586.
• Salaman, R. A. (1989) Dictionary of Woodworking Tools. ISBN 0-04-440256-2.
• Todd, R., Allen, D., Alting, L., Manufacturing Processes Reference Guide, p. 124, 1994
• Watson, Aldren A. (1982) Hand Tools: Their Ways and Workings. ISBN 1-55821-224-8.
• Whelan, John M. (1993) The Wooden Plane: Its History, Form and Function Mendham, NJ: Astragal Press ISBN 978-1-879335-32-5.

Wikimedia Commons has media related to Plane (tool).

• Handplane Central Information for all types of hand planes, including wooden planes, infill planes and Stanley type planes. Also information on how to make hand planes.
• Catalog of American Patented Antique Tools A pictorial collection of antique planes and other tools showing some of the variety in styles.
• The history, types, collector value and other information on the British hand plane maker Record Planes
• Old woodworking planes Archived 2018-09-07 at the Wayback Machine