---
product_id: 39301117
title: "Irwin Tools Strait-Line 64901 Chalk Refills"
brand: "irwin"
price: "S$5"
currency: SGD
in_stock: true
reviews_count: 8
category: "Irwin"
url: https://www.desertcart.sg/products/39301117-irwin-tools-strait-line-64901-chalk-refills
store_origin: SG
region: Singapore
---

# Vivid blue color for high visibility Refillable 8-ounce bottle for sustainability Airtight flip-top cap prevents clumping Irwin Tools Strait-Line 64901 Chalk Refills

**Brand:** irwin
**Price:** S$5
**Availability:** ✅ In Stock

## Summary

> 🔵 Mark your success with precision and style!

## Quick Answers

- **What is this?** Irwin Tools Strait-Line 64901 Chalk Refills by irwin
- **How much does it cost?** S$5 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/39301117-irwin-tools-strait-line-64901-chalk-refills)

## Best For

- irwin enthusiasts

## Why This Product

- Trusted irwin brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Eco-Smart Refill:** Generous 8-ounce refill bottle designed to reduce waste and keep your tools stocked.
- • **Trusted Durability:** Crafted by IRWIN with premium materials and exacting standards for consistent performance.
- • **Precision Visibility:** Bright blue chalk ensures your markings stand out on any surface, indoor or outdoor.
- • **Clump-Free Confidence:** Innovative airtight flip-top cap locks out moisture, keeping chalk fresh and ready to use.
- • **Versatile Application:** Perfect for construction, drywall tinting, and all your professional layout needs.

## Overview

The IRWIN Tools Strait-Line 64901 Chalk Refills deliver vibrant blue, temporary markings with superior visibility for both interior and exterior projects. Featuring an airtight flip-top cap to prevent clumping and an 8-ounce refillable bottle, this chalk is engineered for professional-grade durability and versatility, making it a must-have for millennial managers who demand efficiency and reliability on every job.

## Description

Product Description This IRWIN STRAIT-LINE Standard Marking Chalk creates temporary marks that provide great visibility. The versatile formula is designed for both interior and exterior applications. Each bottle of IRWIN STRAIT-LINE marking chalk features a flip-top cap that is specially engineered for an airtight seal that keeps moisture out and minimizes clumping. From the Manufacturer Chalk Refill, 8 ounces of blue chalk refill for all reel type chalk line boxes, packaged in a plastic squeeze bottle with fast-fill spout, and snap cap to prevent spilling and moisture in chalk. Irwin tools are made of only the finest materials, manufactured to exacting tolerances.

Review: Great snap line refill at a super price - Great item at an awesome price. Works as intended. I don’t need it to be permanent but it lasts long enough for its intended use. I recommend using this product.
Review: Excellent for tinting drywall mud - I use this to tint drywall mud and it works extremely well. A little goes a long way when mixing into drywall mud. My advice is to add slowly while mixing. This product doesn’t require you to add more water to your mud. This chalk will not affect your mud’s ability to stick. For all purpose mud, this is a great addition to help when doing a second round for skim coating. Most PVA primers will hide the blue color in one coat as long as you keep it a lighter blue.

## Features

- Use this marking chalk to provide temporary marks with great visibility
- This marking chalk is designed for both interior and exterior use
- STRAIT-LINE marking chalk comes with a flip-top cap for an airtight seal that minimizes clumping
- Color: Blue
- 8-ounce weight

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00002N6RH |
| Additional Features | Refillable |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Best Sellers Rank | #55,181 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #25 in Measuring & Layout Chalk Lines |
| Body Shape | Round |
| Brand | IRWIN |
| Brand Name | IRWIN |
| Closure Type | Snap |
| Color | Blue |
| Customer Reviews | 4.4 out of 5 stars 796 Reviews |
| Drill Point | Chalk |
| Global Trade Identification Number | 00024721500076 |
| Grip Type | Flip |
| Hand Orientation | Ambidextrous |
| Included Components | -- |
| Ink Base | Water |
| Ink Color | Blue |
| Item Dimensions | 5.91 x 3.15 x 7.87 inches |
| Item Height | 7.87 inches |
| Item Type Name | --- |
| Item Weight | 0.1 Kilograms |
| Line Size | 2mm_and_above |
| Manufacturer | AMEX9 |
| Material | Chalk |
| Material Type | Chalk |
| Model Name | ---- |
| Model Number | 64901 |
| Pattern | None (or) Not Applicable |
| Recommended Uses For Product | Home, School |
| Style | utilitarian |
| UPC | 024721500076 |
| Unit Count | 1.0 Count |
| Writing Instrument Form | Chalk |

## Images

![Irwin Tools Strait-Line 64901 Chalk Refills - Image 1](https://m.media-amazon.com/images/I/51Lvg-fzFGL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great snap line refill at a super price
*by B***R on May 15, 2025*

Great item at an awesome price. Works as intended. I don’t need it to be permanent but it lasts long enough for its intended use. I recommend using this product.

### ⭐⭐⭐⭐⭐ Excellent for tinting drywall mud
*by H***A on March 18, 2025*

I use this to tint drywall mud and it works extremely well. A little goes a long way when mixing into drywall mud. My advice is to add slowly while mixing. This product doesn’t require you to add more water to your mud. This chalk will not affect your mud’s ability to stick. For all purpose mud, this is a great addition to help when doing a second round for skim coating. Most PVA primers will hide the blue color in one coat as long as you keep it a lighter blue.

### ⭐⭐⭐⭐⭐ EXCELLENT product
*by P***K on September 9, 2025*

BEST chalk quality never clumps! Priced VERY reasonable too

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**Shop now:** [https://www.desertcart.sg/products/39301117-irwin-tools-strait-line-64901-chalk-refills](https://www.desertcart.sg/products/39301117-irwin-tools-strait-line-64901-chalk-refills)

---

*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-04*