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

Milwaukee® 49-56-0132 HOLE DOZER™ 2-1/4" Bi-Metal Hole Saw – Technical Product Information

The Milwaukee® 49-56-0132 HOLE DOZER™ 2-1/4" Bi-Metal Hole Saw is engineered for professional-grade metalworking, electrical, and mechanical applications where precision and endurance are critical. Featuring a 3.5 TPI variable pitch tooth geometry, this hole saw delivers faster cutting performance, reduced vibration, and an extended service life in a wide range of substrates. The Matrix II high-speed steel teeth, reinforced with 8% cobalt alloy, provide outstanding heat resistance and wear protection for demanding cutting environments. Milwaukee’s ALL-ACCESS SLOT™ design improves chip evacuation, allows for effortless plug removal, and increases pilot bit visibility for enhanced cutting accuracy. Finished with a Thermoset Coating, the HOLE DOZER™ operates cooler, cuts faster, and delivers up to 25% more holes per charge when used with cordless power tools. Proudly made in the USA, this hole saw is built to meet professional durability and performance standards.

Technical Specifications

• Manufacturer: Milwaukee Tool
• Model Number: 49-56-0132
• Series: HOLE DOZER™ Bi-Metal Series
• Tool Type: Bi-Metal Hole Saw
• Diameter: 2-1/4 inches (57.2 mm)
• Tooth Design: 3.5 TPI variable pitch configuration
• Tooth Material: Matrix II high-speed steel with 8% cobalt alloy
• Body Construction: Reinforced alloy steel body for durability and stability
• Cutting Depth: 1-5/8 inches (41.3 mm)
• Slot Design: ALL-ACCESS SLOT™ for faster plug removal and improved chip evacuation
• Surface Coating: Thermoset Coating for reduced friction and optimized cutting performance
• Cordless Optimization: Provides up to 25% more holes per charge on cordless tools
• Applications: Electrical rough-ins, HVAC ducting, pipe and conduit installation, and mechanical fastening work
• Material Compatibility: Ferrous and non-ferrous metals, aluminum, stainless steel, wood, PVC, and composites
• Compatible Arbors: Standard and quick-change arbors with pilot bits
• Recommended Speed Range: Dependent on material (refer to Milwaukee technical cutting chart)
• Operating Equipment: Corded or cordless drill systems
• Manufacturing Origin: Made in the USA
• Warranty: Lifetime Tooth Break Warranty

Design and Performance Features

• 3.5 TPI variable pitch design ensures aggressive cutting with smoother operation and less vibration
• Matrix II high-speed steel teeth with 8% cobalt provide superior heat and wear resistance
• ALL-ACCESS SLOT™ allows quick plug removal, efficient chip clearing, and improved pilot visibility
• Thermoset Coating enhances cutting speed and tool longevity under load
• Optimized for cordless tools to maximize battery efficiency and productivity on site
• Reinforced alloy steel body maintains cutting concentricity and structural rigidity
• Ideal for multipurpose jobsite drilling including conduit, fixture, and mechanical installations
• Precision-balanced for controlled operation and reduced operator fatigue
• Engineered and manufactured in the USA for consistent quality and dimensional accuracy

Professional Summary

The Milwaukee® 49-56-0132 HOLE DOZER™ 2-1/4" Bi-Metal Hole Saw provides professional contractors with a high-performance cutting solution designed for accuracy, endurance, and jobsite efficiency. Featuring a Matrix II steel construction, 3.5 TPI tooth geometry, and the industry-leading ALL-ACCESS SLOT™ design, it ensures faster cutting, smoother operation, and superior chip removal across various materials. The Thermoset Coating enhances performance and cordless tool compatibility, resulting in greater productivity and extended service life. Built to withstand demanding use and backed by Milwaukee’s Lifetime Tooth Break Warranty, this hole saw delivers consistent precision and reliability for professional-grade applications.