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OTEC D15E 300mm Diamond Blade - Concrete & General Purpose (20mm Bore) product view | CMT Group

OTEC D15E 300mm Diamond Blade - Concrete & General Purpose (20mm Bore) is a professional general-purpose diamond blade designed for clean, controlled cutting of concrete, masonry, and hard materials with reliable site performance.

● Product type: Diamond cutting blade (general purpose)
● Diameter: 300mm
● Bore size: 20mm
● Application: Concrete and general construction materials
● Segment type: Segmented rim for efficient cutting and cooling
● Use: Suitable for site cutting and general trade applications
● Compatibility: Compatible with petrol and electric cut-off saws (check machine spec)

OTEC D15E 300mm Diamond Blade - Concrete & General Purpose (20mm Bore)

Code

D15E-300/20

1510+ In Stock

£17.88 £14.90

Order 1x to earn 14 FASTPoints

Order to earn 14 FASTPoints

1510+ In Stock

Product Details

Product Name

OTEC D15E 300mm Diamond Blade - Concrete & General Purpose (20mm Bore)

Overview

The OTEC D15E 300mm Diamond Blade - Concrete & General Purpose (20mm Bore) is a contractor-grade segmented diamond blade designed for everyday cutting of concrete and general purpose masonry materials. With a 300mm diameter and 20mm bore to suit handheld saws, it delivers a practical balance of cutting speed and durability for site work. Cooling holes support improved heat control during continuous cutting, and the blade conforms to EN13236 for diamond blade safety and specification-led procurement.

Key Features & Benefits

Segmented rim diamond blade for fast cutting speed on concrete and general purpose materials.
Reliable contractor-grade, cost-effective performance for everyday site cutting tasks.
300mm diameter with 20mm bore to suit handheld saws and common spindle setups.
Cooling holes help reduce heat build-up and support consistent cutting performance.
Suitable for running at up to 6400 RPM for reliable handheld saw operation.
Conforms to EN13236 for diamond blade safety and procurement specification.

Installation & Applications

Fit the blade to a compatible handheld saw, ensuring the bore size matches the machine spindle and the rotation direction arrow aligns with spindle rotation. Suitable for cutting concrete and general purpose building materials including kerbs, slabs, medium hard bricks, yorkstone, concrete paviors, and hard nonabrasive concrete products. If wet cutting, ensure there is a plentiful supply of water to both sides of the blade.

Before Use: Ensure blade type and specification is suitable for the material to be cut. Inspect for cracking, segment detachment, undercutting of the steel centre just below the segment, uneven wear, or any other defect. Check rotation of the machine spindle matches the direction arrow on the blade and ensure the bore size matches the machine spindle. Wear adequate safety clothing, including eye protection, and check the machine is in safe working order, especially protective guards.

During Use: Do not apply excessive force when cutting as this can damage the blade. Allow regular cooling breaks and ensure the material being cut is firmly secured. Frequently check the blade for signs of damage. If overheating occurs, the product being cut may be too hard. A blunt blade can be resharpened by running in a soft abrasive material such as brick or block. If this problem recurs, stop using and consult your supplier. If wet cutting, ensure there is a plentiful supply of water to both sides of the blade.

Who Is This For?

Contractors and groundworkers cutting concrete kerbs, slabs, and hard landscaping products.
Builders needing a reliable general purpose blade for everyday site cutting tasks.
Hire and site teams specifying EN13236 compliant diamond blades for controlled use.
Procurement teams sourcing cost-effective contractor-grade blades for ongoing projects.

Competitive Advantages

The D15E provides reliable cutting performance for concrete and general purpose applications without the cost of higher-spec specialist blades. The segmented rim supports cutting speed, cooling holes help manage heat during use, and EN13236 compliance supports specification-led procurement for trade environments.

Why CMT Group?

CMT Group supplies trade-ready cutting consumables and diamond blades from trusted ranges, including OTEC, CMT’s own brand. Since 1992, OTEC diamond blades have supported the construction and civil engineering industry with proven performance and durability, backed by an excellent track record of safety. With more than 30 years of contractor use, OTEC blades are specified by many of the UK’s biggest contractors for reliable everyday cutting and consistent results.

Since 1992: long-established OTEC blade range with contractor-led performance heritage.
Proven track record: high performance and durability with a strong safety reputation over 30+ years.
Technology-led design: all OTEC blades are engineered for safe running speeds as saw performance increases.
Safe running speed guidance: 100m/second rating, including 6400 RPM for 300mm blades.
Procurement-friendly specifications: clear EN compliance, bore sizing, and RPM ratings for confident ordering.

Frequently Asked Questions

What materials is this blade suitable for? It is suitable for concrete and general purpose masonry materials such as kerbs, slabs, medium hard bricks, yorkstone, concrete paviors, and hard nonabrasive concrete products.

What is the maximum RPM? The blade is suitable for running at up to 6400 RPM. Always ensure your machine specification matches the blade rating.

How do I check the blade before use? Inspect for cracking, segment detachment, undercutting, uneven wear, or defects. Confirm rotation direction matches the blade arrow, bore size matches the spindle, wear eye protection, and ensure protective guards are fitted and secure.

Specifications Table

Product Name	OTEC D15E 300mm Diamond Blade - Concrete & General Purpose (20mm Bore)
Product Code	D15E-300/20
Blade Type	Segmented diamond blade
Application	Concrete & general purpose cutting
Diameter	300mm
Bore	20mm
Max Speed	Up to 6400 RPM
Cooling	Cooling holes
Standard	EN13236
Machine Type	Handheld saw