---
product_id: 475800215
title: "Undercut Saw Blade, 6-1/2\" Diameter - Replacement for Crain #821 - Compatible with Crain Undercut Saw #812, #820 and #825 - Carbide Teeth"
brand: "caliastro"
price: "S$64"
currency: SGD
in_stock: true
url: https://www.desertcart.sg/products/475800215-undercut-saw-blade-6-1-2-diameter-replacement-for-crain
store_origin: SG
region: Singapore
---

# 6-1/2" diameter Tungsten carbide teeth 7/8" bore size Undercut Saw Blade, 6-1/2" Diameter - Replacement for Crain #821 - Compatible with Crain Undercut Saw #812, #820 and #825 - Carbide Teeth

**Brand:** caliastro
**Price:** S$64
**Availability:** ✅ In Stock

## Summary

> Cutting Edge Performance! 🪚

## Quick Answers

- **What is this?** Undercut Saw Blade, 6-1/2" Diameter - Replacement for Crain #821 - Compatible with Crain Undercut Saw #812, #820 and #825 - Carbide Teeth by caliastro
- **How much does it cost?** S$64 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/475800215-undercut-saw-blade-6-1-2-diameter-replacement-for-crain)

## Best For

- caliastro enthusiasts

## Why This Product

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

## Key Features

- • **Durable Design:** Crafted with hardened steel for longevity.
- • **Heat Resistant:** High-quality carbide teeth withstand extreme conditions.
- • **Easy Replacement:** Seamlessly replace Crain Blade #821 for uninterrupted work.
- • **Precision Cutting:** Achieve straight, clean cuts every time.
- • **Versatile Compatibility:** Fits Crain Undercut Saws #812, #820, and #825.

## Overview

The Undercut Saw Blade is a 6-1/2" diameter replacement blade designed for precision cutting of wood doors, jambs, and drywall. With a 7/8" bore size, it is compatible with Crain Undercut Saws #812, #820, and #825. Made with high-quality tungsten carbide teeth and a hardened steel body, this blade ensures durability and clean cuts, making it an essential tool for any professional.

## Description

Undercut Saw Blade, 6-1/2" Diameter - Replacement for Crain #821 - Compatible with Crain Undercut Saw #812, #820 and #825 - Carbide Teeth

## Features

- 6-1/2 inch undercut saw blade with 7/8" bore size
- Designed for cutting wood doors, door jambs, wood base and drywall
- Replacement blade for Crain Blade #821
- Compatible with Crain Undercut Saw #812, #820 and #825
- Made with high quality Tungsten carbide teeth which are long-lasting and have high heat resistance
- Hardened steel blade body
- Produces straight, clean cuts

## Product Details

- **Material:** Hardened Steel
- **Brand:** Caliastro
- **Product Dimensions:** 10"L x 5"W
- **Color:** Black
- **Number of Teeth:** 10
- **Style:** Compact
- **Item Thickness:** 10 Inches
- **Compatible Material:** Engineered Wood, Plastic
- **Global Trade Identification Number:** 00850027172118

## Images

![Undercut Saw Blade, 6-1/2" Diameter - Replacement for Crain #821 - Compatible with Crain Undercut Saw #812, #820 and #825 - Carbide Teeth - Image 1](https://m.media-amazon.com/images/I/71IUGx3csVL.jpg)

## Frequently Bought Together

- Undercut Saw Blade, 6-1/2" Diameter - Replacement for Crain #821 - Compatible with Crain Undercut Saw #812, #820 and #825 - Carbide Teeth
- Crain No. 835 Heavy-Duty Undercut Saw, Formerly Crain 825NEW
- Bon Tool Crain Blade For Undercut Saw (78-836)

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**Shop now:** [https://www.desertcart.sg/products/475800215-undercut-saw-blade-6-1-2-diameter-replacement-for-crain](https://www.desertcart.sg/products/475800215-undercut-saw-blade-6-1-2-diameter-replacement-for-crain)

---

*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-03-12*