#STRAIT LINE CHALK LINE REEL PLUMB BOB FULL#

Irwin® Strait-Line® is the leader in chalk reels and will continue to be the chalk reel that end-users demand.

#STRAIT LINE CHALK LINE REEL PLUMB BOB FULL#

In our full line assortment, we offer reels that range from 1:1 gear ratio, up to 6:1 gear ratio and a blended line, which is 2X stronger than traditional chalk reel line. Irwin® Strait-Line® chalk reels focus on speed, line and durability, the three benefits that are spoken about by nearly every end-user. We have been manufacturing chalk reels that meet and exceed end-user needs for over 50 years. Irwin® Strait-Line® offers a complete line of chalk reels. A sumitsubo is a traditional tool included with them.Irwin® Strait-Line® Chalk Line Reel, Series: Speed-Line, 100 ft Line Length, Nylon/Polyester Line, 2 oz, No-Spin Crank Handle, 3x Faster Retraction, No-Spill Locking Door, Steel Plated Hook, 3.5:1 Gear Ratio, ABS Case, Blue Case

As part of this event, a set of symbolic carpenter's tools are freshly made and presented to the new building. On the completion of a major building, a large celebration or topping-out ceremony is held. As with many such tools, they're often made by their users while apprentices. These sumitsubo are highly decorated and much-prized by their owners. Many of the tasks that chalk lines performs also requires a plumb bob, such as chalking a plumb line, hanging wallpaper, etc. In general, the concept of marrying a chalk line to a plumb bob is a pretty good idea. Alongside the line reel is a cavity filled with ink-soaked cotton fibres, which the line is drawn through as it is unreeled. The chalk line container is about 3 ' in diameter and the bob weighs about 9 ounces. Later spread in East Asian countries, in Japan it is called a sumitsubo. This is a silken cord, stored on a combined reel and inkpot which invented by Chinese master craftsman Lu Ban. In East Asia, an ink line is used in preference to a chalk line. Ink lines Sumitsubo and bamboo marking pens

History Blue chalk line on concrete walls as level referenceĬhalk lines were used in ancient Egypt, are mentioned in Homer's Illiad, and have been used continuously by builders in various cultures since.Ĭontinuing development of this simple-but-effective tool focuses on the coloration for the chalk or marking compound, as well as the outer case and method of handling. Ĭhalk lines and plumb-bobs are often sold as a single tool. The primary problems associated with improper maintenance of a chalk line are string breakage due to excessive tension on the line, and degradation of the line associated with moisture contamination.

Chalk lines can also be used across irregular surfaces and surfaces with holes in them, for example on an unfinished stud wall. The objects to be marked do not need to be continuous along the line. However, as long as the line is taut and the two ends of the chalk line are in nearly the same plane, the chalk line will mark all points that the string touches on or near that plane once snapped. Next, the string is then plucked or snapped sharply, causing the string to strike the surface, which then transfers its chalk to the surface along that straight line where it struck.Ĭhalk lines are typically used to mark relatively flat surfaces. The string is then laid across the surface to be marked and pulled tight. It is an important tool in carpentry, the working of timber in a rough and unplaned state, as it does not require the timber to have a straight or squared edge formed onto it beforehand.Ī chalk line draws straight lines by the action of a taut nylon or similar string that has been previously coated with a loose dye, usually chalk. They may be used to lay out straight lines between two points, or vertical lines by using the weight of the line reel as a plumb line.

Tool for marking straight lines Chalk line toolĪ chalk line or chalk box is a tool for marking long, straight lines on relatively flat surfaces, much farther than is practical by hand or with a straightedge.

Strait line chalk line reel plumb bob