Electrical installations, HVAC modifications, and similar projects often require cutting through thin metal sheets or pipes. Traditional cutting methods frequently result in excessive vibration, tool deflection, and material damage – challenges that waste both time and resources. The Starrett FCH0400 bimetal hole saw provides an effective solution to these common problems.
This 102mm (4-inch) bimetal hole saw is specifically engineered for efficient, precise cutting of thin metals. Its innovative design combines high-strength steel teeth with a durable alloy steel body, making it capable of handling stainless steel, mild steel, and thin-walled pipes up to 3mm thick. Whether for professional tradespeople or DIY enthusiasts, the FCH0400 delivers reliable performance for various cutting applications.
Constant Pitch Design: Smooth Cutting Without Jamming
The Starrett FCH0400 features a unique constant pitch design where tooth spacing remains uniform throughout the cutting edge. This engineering choice provides immediate benefits during operation, allowing the tool to engage material more smoothly while reducing tooth chatter and binding. The advantage becomes particularly evident when working with thin or uneven surfaces, where the design prevents tool deflection and maintains cutting accuracy.
Conventional variable pitch hole saws, while offering some efficiency advantages, often demonstrate uneven tooth engagement when cutting thin metals. This frequently leads to unstable cutting performance and potential material damage. Starrett's constant pitch design effectively eliminates these issues, delivering consistent, controlled cutting action.
Bimetal Construction: Enhanced Durability for Extended Service Life
Tool longevity represents a critical value consideration. The FCH0400 employs a bimetal construction that marries wear-resistant high-speed steel teeth with a hardened alloy steel body. The high-speed steel cutting teeth provide exceptional hardness and wear resistance to tackle various metal materials, while the alloy steel body offers structural integrity to prevent deformation during use.
This bimetal configuration not only improves cutting efficiency but significantly extends the tool's operational life. Even under demanding, continuous-use conditions, the Starrett FCH0400 maintains its performance characteristics, reducing replacement frequency and associated costs.
Thin Metal Optimization: Clean Cuts Without Compromise
Engineered specifically for thin metal applications, the FCH0400 handles stainless steel sheets and mild steel pipes up to 3mm thickness with ease. Its specialized tooth geometry and cutting angles minimize burr formation and material deformation, ensuring clean, precise cut edges.
Electrical and HVAC applications frequently require hole cutting in thin metals, where conventional tools often produce irregular edges and material distortion. The Starrett FCH0400 addresses these challenges directly, delivering professional-grade results for critical applications.
5½ TPI Configuration: Vibration Control for Stable Performance
Teeth per inch (TPI) directly influences cutting speed and precision. The FCH0400's 5½ TPI configuration provides optimal vibration control during operation, enhancing cutting stability. Excessive tooth density reduces cutting speed, while insufficient tooth count increases vibration and deflection risk. The 5½ TPI design achieves an effective balance between cutting efficiency and precision.
41mm Cutting Depth: Versatile Application Range
With a maximum cutting depth of 41mm (1 5/8 inches), the FCH0400 accommodates various trade-specific requirements. This capacity allows for cutting both thin metal sheets and moderately thick pipes, expanding its utility across multiple applications. The substantial cutting depth makes the tool equally suitable for professional trades and DIY projects.
Technical Specifications
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Diameter:
102mm / 4 inches
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Material:
Bimetal construction with high-speed steel teeth
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Tooth Pitch:
5½ TPI
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Cutting Depth:
41mm (1 5/8 inches)
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Recommended Applications:
Stainless steel and mild steel sheets or pipes (≤3mm)
The Starrett FCH0400 bimetal hole saw represents an optimal solution for thin metal cutting applications. Through its constant pitch design, bimetal construction, thin metal optimization, 5½ TPI configuration, and 41mm cutting capacity, the tool delivers efficient, precise, and stable performance. Professionals and hobbyists alike can rely on the FCH0400 for consistent results across various cutting tasks.
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