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BI Metal Hole Saws
Created with Pixso. Master Bi-Metal Hole Saw Kit | 8% Cobalt M42 Steel | Deep Cutting Depth & Fast Chip Removal for Professional Contractors

Master Bi-Metal Hole Saw Kit | 8% Cobalt M42 Steel | Deep Cutting Depth & Fast Chip Removal for Professional Contractors

Brand Name: XRTOOLS
Model Number: 30
MOQ: 500PCS
Price: $0.35-22/PCS
Delivery Time: 30-35 days
Payment Terms: L/C, T/T, D/P, Western Union, MoneyGram
Detail Information
Place of Origin:
CHINA
Certification:
ISO9000
Name:
Hss Bi Metal Hole Saw
Type:
Hole Saw
Diameter:
4.5 Inch
Body Material:
Bimetallic Material
Cutting Depth:
4-1/2 Inch(114mm)
Surface Finish:
Color Painting
Use:
Plastic Plywood Ceiling Thin Metal
Material:
M42
Packing:
Bags+box+carton As Your Requirement
Process:
Edge Welded
Oem:
Acceptable
Packaging Details:
Color paper box
Supply Ability:
10000PCS PER DAY
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Product Description

1. Product Introduction

 

Our Bi-Metal Hole Saw represents the perfect balance of strength and flexibility. By electron-beam welding a high-performance HSS M3 or M42 (8% Cobalt) cutting edge to a tough, alloy steel backer, we have created a tool that can withstand the rigors of heavy-duty drilling without shattering.

 

 

The variable pitch teeth (4/6 TPI) design ensures a smoother cut with less vibration, making it ideal for a wide range of materials including stainless steel, mild steel, aluminum, hardwood, and plastics. This is the "go-to" tool for electricians, plumbers, and HVAC professionals worldwide.

 

 

Master Bi-Metal Hole Saw Kit | 8% Cobalt M42 Steel | Deep Cutting Depth & Fast Chip Removal for Professional Contractors 0

 

2. Technical Specifications Matrix

 

Feature Specification Details Industrial Advantage
Blade Material HSS M3 or M42 (8% Cobalt) High Heat Resistance & Edge Retention
Body Material Premium Alloy Spring Steel Resists Fatigue and Shattering
Teeth Design Variable Pitch (4/6 TPI) Faster Cuts, Lower Vibration, Better Chip Clearance
Cutting Depth 38mm (1-1/2") to 45mm Suitable for Deep Drilling and Thicker Joists
Surface Finish Powder Coated or Painted Friction Reduction and Corrosion Protection
Compatibility Fits Standard Arbors and Chucks Universal Hex/SDS Shank Integration

 

3. Customer Challenges & Engineered Solutions

 

  • Challenge: "The hole saw gets too hot and the teeth go dull quickly."

    • Solution: We offer an M42 Grade with 8% Cobalt. Cobalt significantly increases "red-hardness," allowing the hole saw to maintain its edge even when cutting through tough materials like 304 stainless steel at high speeds.

  • Challenge: "The tool vibrates too much, causing an uneven hole."

    • Solution: Our Variable Pitch Teeth (4/6 TPI) design breaks the harmonic frequency during drilling. This stabilizes the cut, reduces operator fatigue, and produces a cleaner, more accurate hole diameter.

  • Challenge: "Cores get stuck inside the saw and are hard to remove."

    • Solution: Every hole saw features wide side slots (Ejection Slots). These allow for easier chip removal and provide a convenient leverage point to pop out the wood or metal core after the cut is complete.

 

4. Primary Product Applications

 

 

  • Electrical & Plumbing: Cutting holes in junction boxes, drywall, and plastic pipes.

  • Metalworking: Drilling through stainless steel sheets, aluminum panels, and mild steel tubes.

  • Carpentry: Creating clean entries for cables in desks, or holes for door locks in hardwood.

  • HVAC Installation: Large diameter cuts for ventilation ducting and copper pipe routing.

 

 

Master Bi-Metal Hole Saw Kit | 8% Cobalt M42 Steel | Deep Cutting Depth & Fast Chip Removal for Professional Contractors 1

 

 

5. FAQ (Frequently Asked Questions)

 

 

Q: Can I use this hole saw on Stainless Steel? 

 

A: Yes, but we strongly recommend our M42 (Cobalt) version for stainless steel. Always use a low RPM and plenty of cutting oil to prevent the material from work-hardening.

 

Q: Why is my hole saw wobbling during the cut?

 

A: This is usually due to an improperly tightened arbor or a dull pilot drill bit. Ensure the pins on the arbor are fully engaged into the holes on the base of the saw.

 

Q: Does the set come with arbors?

 

A: We offer both individual saws and complete kits. Kits usually include the most popular sizes (19mm - 76mm) along with 2-3 standard arbors and a pilot drill.