Provided is a reference point indicating apparatus, which is comprises an equilateral parallelogram being formed with rotatable link points, contacts provided at tips of extending portions obtained by extending respective sides of the equilateral parallelogram, a link plate for linking between middle points of one set of opposing sides of the equilateral parallelogram, and an indicator provided on the link plate, wherein the contacts are capable of abutting on an object by expansion and contraction of the equilateral parallelogram, wherein the indicator is configured to indicate a reference point of the object in a state where the contacts abut on the object.

A level multitool, comprising a plurality level bodies, wherein each of the plurality of level bodies comprises at least one level, bubble level or spirit level and wherein each of the plurality of level bodies is removably connected to another of the plurality of level bodies by a hinge such that a first level body connected by a first hinge can articulate with respect to a second level body connected thereto via the first hinge so that the first and second level bodies may be releasably locked by the first hinge in a plurality of positions wherein an angle between the first and second level bodies at each position is different than the angle therebetween at each of the other plurality of positions.

A level multitool, comprising a plurality level bodies, wherein each of the plurality of level bodies comprises at least one level, bubble level or spirit level and wherein each of the plurality of level bodies is removably connected to another of the plurality of level bodies by a hinge such that a first level body connected by a first hinge can articulate with respect to a second level body connected thereto via the first hinge so that the first and second level bodies may be releasably locked by the first hinge in a plurality of positions wherein an angle between the first and second level bodies at each position is different than the angle therebetween at each of the other plurality of positions.

A measuring tool is provided which includes a sliding member which is in a rotational sliding engagement to the body of the tool. The sliding member is positionable for measuring distances between a first end thereof and a first body segment. A second body segment extends perpendicular from a first end of the first body segment and a third body segment extends at a 45 degree angle from a second end of the first body segment opposite the first end thereof.

A measuring tool is provided which includes a sliding member which is in a rotational sliding engagement to the body of the tool. The sliding member is positionable for measuring distances between a first end thereof and a first body segment. A second body segment extends perpendicular from a first end of the first body segment and a third body segment extends at a 45 degree angle from a second end of the first body segment opposite the first end thereof.

A stepwise and stepless adjustable square for use in carpentry, including: a stock; a blade; a first alignment structure; a second alignment structure; a spring device; a spring expansion-restricting element; and a knob movable between a first position and a second position, wherein in the first position the first and second alignment structures at certain angles between the stock and the blade align and engage such that a force of the spring device is reduced compared to the force at angles where the first and second alignment structures do not align for stepwise adjustment, and wherein in the second position the first alignment structure is moved axially away from the second alignment structure for stepless adjustment.

A stepwise and stepless adjustable square for use in carpentry, including: a stock; a blade; a first alignment structure; a second alignment structure; a spring device; a spring expansion-restricting element; and a knob movable between a first position and a second position, wherein in the first position the first and second alignment structures at certain angles between the stock and the blade align and engage such that a force of the spring device is reduced compared to the force at angles where the first and second alignment structures do not align for stepwise adjustment, and wherein in the second position the first alignment structure is moved axially away from the second alignment structure for stepless adjustment.

A stepwise adjustable square for use in carpentry, including: a stock; and a blade rotatable relative to the stock around an axis of rotation between a first extreme position at zero degrees, where the blade is parallel to the stock and partly provided in a space of the stock, and a second extreme position at about 270 degrees, where the blade is substantially perpendicular to the stock.

A stepwise adjustable square for use in carpentry, including: a stock; and a blade rotatable relative to the stock around an axis of rotation between a first extreme position at zero degrees, where the blade is parallel to the stock and partly provided in a space of the stock, and a second extreme position at about 270 degrees, where the blade is substantially perpendicular to the stock.

A measuring board having a simple structure is to be provided. A measuring board includes a main body having a foldable structure, and the main body includes a placement part on which a foot is placed and that includes a measurement marker, a wall part provided adjacent to the placement part and configured to position a heel during measurement, and supporting structures and that support the wall part. With such a configuration, a measuring board having a simple structure can be provided.