Skip to content

RUBI Red Cobra Diamond Blade

For Porcelain, Ceramic, Stone & Glass

Original price $33.52 - Original price $117.97
Original price $33.52
$33.52
$33.52 - $117.97
Current price $33.52
RUBI USA  |  MPN: 31950  |  UPC: 8413797319507
Free Shipping Eligible
Availability:
9 in stock!
Availability:
5 in stock!
Availability:
5 in stock!
Availability:
Out of stock
Availability:
4 in stock!
Availability:
5 in stock!
Size: 4"

Blade Specifications

  • Best For: Ceramic, porcelain, marble, granite, natural stone
  • Blade Size: 4"
  • Arbor: 5/8" & 7/8"
  • Application: Dry cutting
  • Blade Type: Continuous rim for smooth, clean cuts

The RUBI® Red Cobra Diamond Blade is a continuous rim blade designed for smooth, controlled cutting across porcelain, ceramic, glass, marble, granite, and natural stone. A reinforced steel core and thicker center section help reduce vibration and maintain stability during cutting.

Key Features
  • Continuous rim design delivers smooth, controlled cutting across tile and stone
  • Reinforced steel core reduces vibration and blade deflection during cutting
  • Thicker center section improves stability for cleaner, more consistent cuts
  • Wide material compatibility supports tile, stone, and glass applications
  • Laser-welded construction maintains performance in wet or dry cutting conditions
  • 5/8" ring adapter supports compatibility with common saws and grinders
Best For
  • Porcelain and ceramic tile cutting applications
  • Marble, granite, and natural stone cutting
  • Glass tile cutting requiring smooth edge finishes
  • Installers needing stable, low-vibration cutting performance

Why Professionals Choose Tile This

  • Free shipping on eligible orders $200+
  • Same-day shipping before 2 PM CST (Mon–Sat) for in-stock items
  • Eligible for our Contractor Pricing Program
  • Authorized RUBI USA Dealer
RUBI Red Cobra Diamond Blade 4" $33.52

Description

The RUBI® Red Cobra Diamond Blade is a continuous rim diamond blade designed for cutting porcelain, ceramic, glass, marble, granite, and natural stone. Its reinforced steel core and thicker center section help reduce vibration and blade wobble during cutting.

A 5/8" ring adapter is included for compatibility with common arbor sizes, supporting stable installation across multiple saws and grinders depending on blade diameter.

Key Features

  • Continuous Rim Diamond Blade: Designed for smooth, controlled cutting across tile and stone materials.
  • Reinforced Steel Core: Thicker center construction helps reduce vibration and blade deflection.
  • Wide Material Compatibility: Suitable for porcelain, ceramic, glass, marble, granite, and natural stone.
  • Laser-Welded Construction: Supports consistent performance during wet or dry cutting based on blade size.
  • Arbor Flexibility: Includes a 5/8" ring adapter for broader tool compatibility.

Specifications

Specification Details
Blade Type Continuous rim diamond blade
Grade Premium
Compatible Materials Ceramic, porcelain, marble, granite, natural stone
Construction Laser-welded with reinforced steel core

Size Specifications

Size Arbor(s) Rim Height Thickness Usage
4" 5/8" & 7/8" 1/4" 1/16" Dry
4.5" 5/8" & 7/8" 1/4" 1/16" Dry
7" 5/8" & 7/8" 5/16" 1/16" Wet
8" 5/8" & 1" 5/16" 1/16" Wet
10" 5/8" & 1" 3/8" 1/16" Wet
12" 1" 3/8" 1/8" Wet

The RUBI® Red Cobra Diamond Blade provides stable, controlled cutting performance across a wide range of tile and stone materials when matched to the appropriate size and cutting method.

Rubi Tools Logo

Frequently Asked Questions

What materials can this diamond blade cut?
The RUBI Red Cobra Diamond Blade is designed for cutting porcelain, ceramic, glass, marble, granite, and natural stone. Its continuous rim design supports smooth, controlled cuts across a wide range of tile and stone materials.
Can this blade be used for wet and dry cutting?
Cutting method depends on blade size. Smaller diameters are intended for dry cutting, while larger sizes are designed for wet cutting applications. Always match the blade size to the recommended cutting method for best results.
Does this blade fit different arbor sizes?
Yes. The RUBI Red Cobra Diamond Blade includes a 5/8 inch ring adapter, allowing compatibility with common arbor sizes found on tile saws and grinders depending on blade diameter.
Free Shipping $200+

On Eligible Orders

FAST U.S. SHIPPING

In Stock & Ready to Ship

30 Day Returns

Easy, Hassle-Free Returns

Contractor Pricing

Exclusive Trade Discounts