4-1/2"Bi-Metal Hole Saw Bulk, Rip Guard 3.5 TPI

Milwaukee® 49-56-0233 HOLE DOZER™ 4-1/2" Bi-Metal Hole Saw – Technical Product Information

The Milwaukee® 49-56-0233 HOLE DOZER™ 4-1/2" Bi-Metal Hole Saw is engineered for professional drilling applications requiring precision, durability, and consistent performance. Designed with a 3.5 TPI variable pitch tooth configuration, this hole saw provides extended life and efficient cutting through metal, wood, and composite materials. Its Matrix II high-speed steel teeth, reinforced with 8% cobalt alloy, deliver superior wear and heat resistance under high-load conditions. The HOLE DOZER™ series integrates Milwaukee’s ALL-ACCESS SLOT™ design for faster plug removal, improved pilot visibility, and efficient chip evacuation. Combined with a Thermoset Coating for reduced friction, this hole saw is optimized for cordless tool performance and maximum productivity on the jobsite.

Technical Specifications

• Manufacturer: Milwaukee Tool
• Model Number: 49-56-0233
• Product Series: HOLE DOZER™ Bi-Metal Series
• Tool Type: Bi-Metal Hole Saw
• Diameter: 4-1/2 inches (114.3 mm)
• Tooth Design: 3.5 TPI variable pitch configuration
• Tooth Material: Matrix II high-speed steel with 8% cobalt content
• Body Material: Alloy steel with precision heat treatment for rigidity and durability
• Cutting Depth: 1-5/8 inches (41.3 mm)
• Slot Design: ALL-ACCESS SLOT™ for fast plug removal and enhanced chip clearance
• Surface Finish: Thermoset Coating for reduced friction and improved cutting efficiency
• Optimized Use: Designed for both cordless and corded drills
• Performance Efficiency: Up to 25% more holes per charge on cordless tools
• Applications: HVAC, plumbing, electrical, fabrication, and general construction
• Cutting Capability: Metal, stainless steel, aluminum, wood, PVC, and plastic
• Pilot Bit Compatibility: Standard and quick-change arbors with pilot bits
• Operating Speed Range: Variable depending on substrate material (per Milwaukee recommended chart)
• Manufacturing Origin: Made in the USA
• Warranty: Lifetime Tooth Break Warranty

Design and Performance Features

• 3.5 TPI variable pitch design ensures faster, smoother cuts with reduced vibration
• Matrix II bi-metal construction withstands high thermal loads for extended service life
• ALL-ACCESS SLOT™ geometry allows quick plug removal and improved chip evacuation
• Thermoset Coating lowers heat buildup and increases cutting speed under continuous operation
• Optimized cutting geometry delivers up to 25% more holes per cordless drill charge
• Reinforced alloy steel body resists deformation and maintains precision under high torque
• Compatible with universal and quick-change arbors for rapid setup and changeover
• Engineered for multi-material cutting performance in professional trade environments
• Manufactured in the USA under strict quality and performance standards

Professional Summary

The Milwaukee® 49-56-0233 HOLE DOZER™ 4-1/2" Bi-Metal Hole Saw provides contractors and tradesmen with a robust, precision-engineered cutting solution for metal and multi-material drilling. Its 3.5 TPI tooth pattern and Matrix II cobalt steel construction ensure long-lasting performance under heavy-duty use. The ALL-ACCESS SLOT™ system improves operational efficiency by enabling fast plug ejection and superior chip flow, while the Thermoset Coating maintains cooler operation and higher cutting speeds. Built for cordless optimization and backed by Milwaukee’s Lifetime Tooth Break Warranty, this 4-1/2" HOLE DOZER™ is designed for reliable, high-performance hole cutting in professional applications.