المنشار الدائري (DT1940-QZ) من (Dewalt) المكون من (30) سنناً بقطر (184mm) بسماكة (2.6mm) و بحجم تثبيت (16mm) و بزاوية أسنان (10DEG)

The Dewalt DT1940-QZ Circular Saw Blade is an 184 mm diameter, 30-tooth ATB blade from Dewalt's Series 30. It’s designed for fast, clean, and precise cuts in wood and non-ferrous materials, with a 30 mm bore for secure mounting and a 1.7 mm kerf for smooth cutting. It also features laser-etched stabilisation vents to reduce noise, a safety shield, and an anti-kickback shoulder for safer operation.

Key specs include: diameter 184 mm, 30 teeth (30T), ATB tooth configuration, 10-degree rake angle, kerf 1.7 mm, bore 30 mm, made from alloy steel for wear resistance, laser-etched stabilisation vents to reduce noise, and safety features like a shield and anti-kickback shoulder.

It is designed for use on wood and non-ferrous materials, making it versatile for tasks like cabinetry, furniture making, and light metal-cutting projects where clean, precise cuts are desired.

Safety first: unplug or remove the battery from your saw. Remove the existing blade using the appropriate wrench. Install the DT1940-QZ with the teeth facing in the direction of rotation (toward the front of the saw on most models) and slide it onto the arbor until seated. Secure with the arbor nut, reattach blade guard, and ensure the blade spins freely without contacting the guard or fence before use.

It includes a safety shield to protect the user from the rotating blade and an anti-kickback shoulder to help reduce kickback during cutting. The 30 mm bore also provides a secure mounting fit for stable operation.

The blade is designed for universal fit with a variety of popular circular saws. Check that your saw supports a 184 mm blade with a 30 mm bore (arbor) and that your saw’s arbor can accommodate that bore size. Also confirm the blade’s diameter and pitch align with your saw’s maximum cutting capacity.

This blade uses a 30T ATB configuration with a 10° rake for clean cross-cuts and a 1.7 mm kerf, optimized for fast, precise cuts in wood and non-ferrous materials. Other 184 mm blades on Fepy may have different tooth geometries (e.g., FTG, general purpose), kerf sizes, or bore options, which can affect cut quality, finish, and compatibility. When comparing, consider tooth count, rake angle, kerf, bore size, and intended material to choose the best match for your project.

Ideal for cabinetry, furniture making, shelving, and other fine woodworking tasks where clean cross-cuts and precise finishes are important. It’s also capable of cutting non-ferrous materials when appropriate, making it a versatile choice for mixed-material projects.

A 1.7 mm kerf indicates the width of material removed by the blade during each cut. A thinner kerf can reduce material waste and require less power, contributing to smoother, quicker cuts, especially on finer woodworking tasks. However, kerf also influences blade stability and chip formation, so use it with appropriate feed rates.

The 30 mm bore refers to the inner diameter of the hole that mounts onto the saw’s arbor. This size is relatively common, but you should verify that your saw’s arbor diameter matches 30 mm or that you have a suitable arbor adapter if needed for proper mounting and secure fastening.

Keep the blade clean and free of pitch and resin after use. Wipe it with a dry cloth, store it in a protective case or dry, safe location, and inspect for chipped or dull teeth before each use. Avoid overheating the blade by using appropriate feed rates and allowing the blade to cool during long cuts.

Consider build quality (alloy steel construction, laser-etched vents), tooth geometry (30T ATB for clean cuts), kerf precision, bore size, and safety features. Dewalt’s Series 30 blades are built for durability and consistent performance, which can translate to longer life, better cut quality, and less rework—factors that often justify a higher upfront cost compared to cheaper alternatives.