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Irwin 6490 Strait-Line Permanent Marking Chalk Refill, 8-Ounce, Exterior Use
Model: IRW-6490
Irwin 6490 Strait-Line Permanent Marking Chalk Refill, 8-Ounce, Exterior UseThe Irwin Strait-Line Permanent Marking Chalk is an 8-Ounce refill engineered specifically for exterior jobsite use...
Irwin
Starting at
$1.28
Irwin IWHT48441RC Strait-Line Classic Aluminum Chalk Reel, Red Chalk
The Irwin IWHT48441RC Strait-Line Classic Aluminum Chalk Reel with Red Chalk is built for carpentry, drywall, flooring, and other trade tasks that demand precise, straight lines. It pairs an impact-resistant aluminum housing with 100 ft. of abrasion-resistant poly line, delivering 5-6 chalk strikes per pull while the included 1 oz. red chalk keeps the line ready to mark. The center line doubles as a plumb bob for added versatility, and the slim aluminum body is engineered for a comfortable, secure grip on the jobsite, making it a practical everyday layout tool for professionals and DIYers alike.
Key Features
- Aluminum Housing: Impact-resistant aluminum construction stands up to daily jobsite use and drops.
- Plumb Bob Function: The center line can be used as a plumb bob for added convenience on the job.
- 1:1 Gear Ratio: Simple, efficient line retraction with every pull of the handle.
- 100 Ft. Poly Line: Abrasion-resistant poly line provides 5-6 strikes per pull before refilling.
- Slim Design: A streamlined body improves grip and comfort during extended use.
- Steel Handle & Large Center Hub: Increases durability, strength, and torque during line retraction.
- Nested Hook Dock: Improves hook storage and reduces unwanted hook snags in use.
- Wide Fill Door: Allows quick, easy chalk fill with increased visibility into the reservoir.
- New Spool Design: Reduces line damage and aerates chalk for more consistent marking.
Technical Specifications
- Series: Strait-Line Classic
- Housing Material: Aluminum
- Marking Type: Chalk Lines
- Chalk Size: 1 Oz
- String Length: 100 Ft
- Power Source: Non-Energy Using
- Battery Required: No
- Warranty: None
- Prop 65 Generic Warning: No
- Country of Origin: Vietnam
- Packaging: 8 ea per case
Typical Applications
- Carpentry and Framing Layout
- Drywall Installation and Layout
- Flooring and Tile Layout
- General Construction Marking
- Plumb Line Reference Using the Center Line
Why Irwin?
Irwin engineers the Strait-Line Classic Reel with an impact-resistant aluminum housing, a robust steel handle, and abrasion-resistant poly line so it holds up to repeated use on real jobsites. Thoughtful details like the nested hook dock, wide fill door, and redesigned spool make chalk loading and hook storage easier while helping protect the line from damage over time. With the included red chalk and a center line that also works as a plumb bob, it's a dependable, straightforward tool for professionals who need consistent, precise lines from setup to strike.
Manufacturer Resources
Product Specs
- list_batch:
- IRW-20260923
- Product Type:
- Layout Tool
- Series:
- Strait-Line Classic
- Department:
- Electrical
- Product Subgroup:
- Measuring Tools
- Product Material:
- Aluminum
- Product Group:
- Hand Tools
- Product Length:
- 6.7 in
- Product Weight:
- 0.97 lb
- Product Width:
- 6.5 in
- Product Height:
- 2.2 in
Irwin IWHT48441RC – Frequently Asked Questions
1) Does the Irwin Strait-Line Classic chalk reel work as a plumb bob?
It does. The center line on the IWHT48441RC can be run out and used as a plumb bob, so you can set a vertical reference for stud layout or wall lines without carrying a separate bob.
2) Is the Irwin IWHT48441RC chalk reel housing plastic or metal?
Metal. The housing is impact-resistant aluminum with a steel handle and a large center hub for torque during retraction, which is the reason this one gets specified over plastic-bodied reels for daily jobsite drops.
3) Can I refill this Irwin chalk reel with a different chalk color?
Yes. The IWHT48441RC ships with red chalk, but the reservoir refills through a wide fill door with visibility into the chamber, so you can load whatever chalk your trade calls for. Red is a permanent-type marking chalk, so if you need a line that brushes off finished surfaces, flush the reel and run blue instead. The redesigned spool aerates the chalk for more consistent transfer to the line.
4) What retraction speed does the Irwin Strait-Line Classic reel have?
It uses a 1:1 gear ratio, meaning one turn of the handle equals one turn of the spool. That is a straightforward rewind rather than a high-speed geared reel, so for 100 ft pulls on large floor layouts expect more cranking than a 3:1 or faster reel.
5) Is the Irwin IWHT48441RC chalk reel good for drywall and flooring layout, or just framing?
All three. It is built for carpentry and framing layout, drywall installation, flooring and tile layout, and general construction marking. The 100 ft line covers most room-length and wall-length pulls in one shot.
6) How many Irwin IWHT48441RC chalk reels come in a case for a stocking order?
Case pack is 8 each. That is the unit to quote on if you are standardizing layout tools across crews or stocking an MRO shelf.
7) Does the hook on the Irwin Strait-Line Classic reel snag when you pull line out?
It is designed against that. The reel has a nested hook dock that seats the end hook when stored, which cuts down on unwanted snags during use, and the reworked spool reduces line damage over repeated pulls.
8) Does the Irwin chalk reel need batteries?
No. The Strait-Line Classic is a hand-cranked tool, non-energy using, with no battery required.
How fast can I get the Irwin IWHT48441RC delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Irwin IWHT48441RC come with a warranty?
Absolutely. The Irwin IWHT48441RC is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Irwin IWHT48441RC?
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product
selection,
installation tips, and troubleshooting. Contact Us
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