2-5/8" Bi-Metal Hole Saw Bulk, Rip Guard 3.5 TPI

Milwaukee® 49-56-0158 HOLE DOZER™ 2-5/8" Bi-Metal Hole Saw – Technical Product Information

The Milwaukee® 49-56-0158 HOLE DOZER™ 2-5/8" Bi-Metal Hole Saw is engineered for professional-grade performance across a wide range of metalworking and construction applications. Featuring an advanced 3.5 TPI variable pitch tooth design, it provides extended service life, faster cutting action, and reduced vibration when used in demanding environments. The Matrix II high-speed steel teeth, alloyed with 8% cobalt, deliver exceptional heat and wear resistance, ensuring consistent performance on both ferrous and non-ferrous materials. The reinforced alloy body maintains hole concentricity, while the ALL-ACCESS SLOT™ configuration simplifies plug removal, enhances chip evacuation, and increases pilot bit visibility for greater cutting precision. Finished with a Thermoset Coating to minimize friction and heat buildup, this hole saw achieves cooler operation and improved efficiency—especially when paired with cordless drilling systems. Manufactured in the USA, the HOLE DOZER™ 2-5/8" hole saw is built for long-term durability and reliability in industrial and commercial use.

Technical Specifications

• Manufacturer: Milwaukee Tool
• Model Number: 49-56-0158
• Series: HOLE DOZER™ Bi-Metal Series
• Tool Type: Bi-Metal Hole Saw
• Diameter: 2-5/8 inches (66.7 mm)
• Tooth Design: 3.5 TPI variable pitch for faster, smoother cutting
• Tooth Material: Matrix II high-speed steel with 8% cobalt for maximum durability
• Body Construction: Reinforced alloy steel body for rigidity and accuracy
• Cutting Depth: 1-5/8 inches (41.3 mm)
• Slot Design: ALL-ACCESS SLOT™ for efficient plug removal and chip evacuation
• Surface Finish: Thermoset Coating for reduced friction and extended cutting life
• Optimized For: Cordless and corded power tools
• Battery Efficiency: Provides up to 25% more holes per charge with cordless systems
• Applications: HVAC installations, electrical conduit openings, plumbing penetrations, mechanical systems, and general construction
• Material Compatibility: Ferrous and non-ferrous metals, stainless steel, aluminum, wood, PVC, and composite materials
• Compatible Arbor Types: Standard and quick-change arbors with pilot bits
• Recommended Speed Range: Variable; refer to Milwaukee’s cutting speed chart by material type
• Drill Compatibility: Corded and cordless drill systems
• Manufacturing Origin: Made in the USA
• Warranty: Lifetime Tooth Break Warranty

Design and Performance Features

• 3.5 TPI variable pitch configuration enhances cutting efficiency and minimizes vibration
• Matrix II bi-metal teeth with 8% cobalt alloy resist wear and withstand high cutting temperatures
• Reinforced alloy body maintains dimensional stability and accuracy through demanding use
• ALL-ACCESS SLOT™ simplifies plug removal and increases chip clearance efficiency
• Improved pilot visibility for precise hole placement and cleaner cutting
• Thermoset Coating delivers cooler, faster cuts and prolongs tool life
• Optimized for cordless performance, providing improved energy efficiency and reduced downtime
• Precision-balanced design minimizes vibration, extending both tool and drill longevity
• Manufactured in the USA under stringent quality control for professional-grade reliability

Professional Summary

The Milwaukee® 49-56-0158 HOLE DOZER™ 2-5/8" Bi-Metal Hole Saw is purpose-built for professional contractors who demand accuracy, endurance, and productivity. Its Matrix II steel teeth deliver superior performance in metal and composite cutting, while the ALL-ACCESS SLOT™ system increases workflow efficiency through rapid plug ejection and chip clearance. The Thermoset Coating enhances heat resistance and extends service life, making it ideal for repeated heavy-duty applications. Supported by Milwaukee’s Lifetime Tooth Break Warranty, this hole saw provides a dependable, high-performance solution for professional drilling operations.