Tajima CHALK-RITE Dura III TACR604S Chalk Line Reel, 45 m, 2.8 mm Line

Tajima CHALK-RITE Dura III TACR604S Chalk Line Reel, 45 m, 2.8 mm Line

Tajima TACR604S (manufacturer's item code CR604S, UPC 0-49296-05830-2) is a chalk line reel from the CHALK-RITE Dura III series. It is not a metal scriber - a chalk line holds a chalk-loaded cord between two points; you lift the cord and let it snap, and a straight line stays on the surface. This model sits at the top of Tajima's range: the cord is 45 m long and 2.8 mm thick, the reservoir takes 709 g of chalk, the front plate is aluminium, and winding is double-speed. Those numbers are also why it is priced in a different class.

What it is for

A chalk line reel is the standard tool for setting out long straight lines on a surface where neither a rule nor a tape will reach. The typical jobs: marking walls and partitions on a reinforced slab before formwork; lines for drywall track on floor and ceiling; tile and batten courses on a roof; setting out floor coverings and tiles; cutting OSB and plasterboard along a straight line. It works with two people or with one - the free end hooks over a nail or an edge, the cord is pulled taut, lifted vertically and released.

Tajima is a Japanese maker of hand tools for construction (TJM Design Corporation), and chalk lines are among the products the brand is known for outside Japan. The series is CHALK-RITE; Dura III is the heaviest build in it.

A 2.8 mm line - "Maximum Bold"

The thickness of the cord decides how much chalk reaches the surface and how wide the line comes out. The manufacturer states a 0.1 in (2.8 mm) line and calls it Maximum Bold. For comparison, the lighter series from the same brand work with a cord of about 1.0 mm. What that changes in practice:

• The line reads on rough concrete. On a floated screed a thin cord is fine; on broomed or damp concrete a thin line disappears into the pores.
• The line reads from a distance. Over a 20-30 m run the wide mark stays visible as a straight line without leaning over it.
• It carries more chalk. One fill yields more snaps before the mark starts to fade.

The cord itself is woven to the maker's own specification. The weave is more durable than a twisted cord, holds more chalk and resists tangling on rewind.

45 metres, not 30

The usual length in this category is 30 m. The Tajima TACR604S gives 45 m (150 ft), that is 50% more. It matters when a line has to cross a whole floor in one go rather than being set out twice with an offset, and when the end of the cord frays - at 45 m there is slack to cut off without the tool becoming too short for the site.

A 709 g chalk reservoir

The body takes up to 709 g (25 oz) of chalk. That is a reservoir of a different order from ordinary chalk lines, whose chambers are measured in tens of grams - the Tajima CR201R this shop also sells takes 45 g. What it buys you: on a large job you do not stop to top up every few lines, and the tool can live in the box loaded, without chalk being a morning decision.

The refill port is large and round, with a plug, and is built not to leak chalk back out.

FASTWIND - double-speed winding

45 m of cord also has to be wound back in. The body carries a metal handle and a double-speed winding mechanism (the packaging marks it as FASTWIND SYSTEM): one turn of the crank takes in twice as much cord as a plain drum. The manufacturer calls it a "robust metal handle" - reinforced, not plastic.

Housing

The front plate is aluminium - metal, not a chromed plastic cover. The rest of the case is shock-resistant and wrapped in an ergonomic rubber shell. At the bottom end there is a ring to clip the tool to a belt, or to anchor it when you are pulling the line on your own.

Why it costs more than an ordinary chalk line

The reason is the specification, not the badge. Against an entry-level reel this model gives 45 m instead of 30 m of cord, a 2.8 mm instead of roughly 1.0 mm line, 709 g instead of tens of grams of chalk, an aluminium front plate and double-speed winding. It is a tool for somebody who sets out lines every day - formwork, floor coverings, drywall, roofing. For two rows of tiles in a bathroom it is far more chalk line than the job needs.

Technical specifications

What is in the box

• 1 x Tajima CHALK-RITE Dura III TACR604S chalk line reel with 45 m of 2.8 mm cord wound in
• Metal crank and hanging ring - part of the tool, nothing to fit separately
• Chalk is not stated as included. The manufacturer does not list chalk in the item's scope of supply, and several dealers sell the model explicitly as "no chalk". Budget for chalk separately - Tajima offers the PLC2 (Micro Chalk) and PLC3 (Snap Line Dye, for semi-permanent marking) ranges in several pack sizes
• No case, no bag and no spare cord. Replacement line for the series is a separate article (PL-ITOS / PL-ITOL / PL-ITOLL)

Working tips

• Fill through the large port, not through the cord slot. That is exactly what the port is for, and it seals tightly afterwards.
• Do not fill to the brim in damp weather. Chalk takes up moisture and cakes; outdoors a smaller dose spreads more evenly along the cord.
• Pull the cord straight up and release it sharply. Pulling it sideways gives a curved or a double line.
• Over 20 m, snap in two steps - once from the middle towards one end and once towards the other. A long cord sags, and the line comes out smeared in the middle.
• Working alone, use the ring. Hook it over a nail, a plug or the edge of the slab, and both hands stay free for tensioning and snapping.

Questions and answers