2-1/8" Bi-Metal Hole Saw Bulk, Rip Guard 3.5 TPI

Milwaukee® 49-56-0127 HOLE DOZER™ 2-1/8" Bi-Metal Hole Saw – Technical Product Information

The Milwaukee® 49-56-0127 HOLE DOZER™ 2-1/8" Bi-Metal Hole Saw is engineered for professional drilling and cutting applications that demand precision, endurance, and productivity. Utilizing an advanced 3.5 TPI variable pitch tooth geometry, it delivers efficient cutting performance and extended life in metal, wood, and composite materials. Manufactured with Matrix II high-speed steel teeth containing 8% cobalt, this hole saw resists heat and wear under high-stress cutting conditions. Milwaukee’s patented ALL-ACCESS SLOT™ system enhances chip ejection, plug removal, and pilot visibility, ensuring consistent, efficient operation. The Thermoset Coating minimizes friction and heat buildup, optimizing cutting speed and cordless tool runtime. Designed, tested, and manufactured in the USA, this HOLE DOZER™ model meets professional-grade standards for durability and precision on demanding jobsites.

Technical Specifications

• Manufacturer: Milwaukee Tool
• Model Number: 49-56-0127
• Series: HOLE DOZER™ Bi-Metal Series
• Tool Type: Bi-Metal Hole Saw
• Diameter: 2-1/8 inches (54 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 improved stability and reduced runout
• Cutting Depth: 1-5/8 inches (41.3 mm)
• Slot Design: ALL-ACCESS SLOT™ for rapid plug ejection and chip evacuation
• Surface Coating: Thermoset Coating for reduced friction and heat control
• Power Compatibility: Optimized for cordless and corded drills
• Efficiency Rating: Delivers up to 25% more holes per cordless charge
• Applications: Electrical rough-ins, mechanical installation, plumbing cutouts, and general metal fabrication
• Material Capability: Ferrous and non-ferrous metals, stainless steel, aluminum, wood, and PVC
• Compatible Arbor Types: Standard and quick-change arbors with pilot bits
• Recommended Speed Range: Variable, depending on substrate (refer to manufacturer cutting guide)
• Noise/Vibration Characteristics: Engineered for reduced vibration and smoother operation
• Manufacturing Origin: Made in the USA
• Warranty: Lifetime Tooth Break Warranty

Design and Performance Features

• 3.5 TPI variable pitch teeth provide faster, cleaner cuts with reduced vibration
• Matrix II bi-metal tooth construction enhances heat resistance and wear life
• ALL-ACCESS SLOT™ design allows easy plug removal and efficient chip clearance
• Thermoset Coating enables cooler, smoother cutting and extended tool longevity
• Optimized for cordless power tools with up to 25% increased cutting efficiency per charge
• Reinforced alloy steel body ensures concentric cutting performance and extended durability
• Precision-balanced design minimizes wobble and enhances control in high-torque applications
• Suitable for HVAC, electrical, mechanical, and plumbing trades requiring precision cutouts
• Manufactured in the USA with strict quality control for professional-grade reliability

Professional Summary

The Milwaukee® 49-56-0127 HOLE DOZER™ 2-1/8" Bi-Metal Hole Saw provides professional contractors with a durable, high-performance solution for multi-material cutting. Its Matrix II steel tooth design, 3.5 TPI geometry, and ALL-ACCESS SLOT™ system work together to deliver efficient cutting, fast plug removal, and superior heat management. Optimized for cordless and corded power tools, this hole saw provides greater productivity, longer service life, and consistent performance across demanding commercial and industrial applications. Backed by Milwaukee’s Lifetime Tooth Break Warranty, it remains a top choice for professionals seeking dependable, precision-engineered cutting equipment.