1-3/8" Bi-Metal Hole Saw Bulk, Rip Guard 3.5 TPI

Milwaukee® 49-56-0072 HOLE DOZER™ Bi-Metal Hole Saw 1-3/8" – Technical Product Information

The Milwaukee® 49-56-0072 HOLE DOZER™ Bi-Metal Hole Saw is engineered for professional contractors requiring precision, speed, and long service life in metal cutting operations. Featuring a 3.5 TPI (teeth per inch) optimized tooth geometry, this hole saw delivers exceptional durability and cutting efficiency across ferrous and non-ferrous materials. The industrial-grade bi-metal construction ensures superior resistance to heat, impact, and wear, while the ALL-ACCESS SLOT design enhances chip evacuation and simplifies plug removal. Designed for use with both corded and cordless power tools, this hole saw achieves faster performance and greater productivity on demanding job sites.

Technical Specifications

• Manufacturer: Milwaukee Tool
• Model Number: 49-56-0072
• Product Type: HOLE DOZER™ Bi-Metal Hole Saw
• Diameter: 1-3/8 inch (34.9 mm)
• Tooth Design: 3.5 TPI progressive cutting edge
• Material: Bi-Metal construction (high-speed steel teeth bonded to alloy steel body)
• Cutting Depth: 1-5/8 inch (41 mm)
• Coating: HOLE DOZER™ Thermoset Coating for reduced friction and faster cutting
• Slot Type: ALL-ACCESS SLOT for improved plug ejection and visibility
• Optimized For: Cordless and corded drill systems
• Applications: Metal, wood, plastic, drywall, cement board, plaster, and composite materials
• Operating Speed: Variable, based on material hardness and drill RPM
• Pilot Bit Compatibility: Standard 1/4" hex pilot bits
• Arbor Compatibility: Universal arbors with 1/2"-20 or 5/8"-18 threads
• Durability: Tested to deliver up to 50x longer life in metal compared to standard hole saws
• Warranty: Lifetime Tooth Break Warranty
• Manufacturing Origin: Made in the USA

Design and Performance Features

• Advanced 3.5 TPI tooth configuration provides efficient material removal and extended life in metal cutting
• Bi-metal construction offers superior heat resistance and durability under heavy-duty applications
• ALL-ACCESS SLOT design ensures rapid plug removal and improved chip clearance
• HOLE DOZER™ Thermoset Coating minimizes friction for faster cuts and cooler operation
• Optimized for cordless tool performance, enabling 25% more holes per charge
• Precision-balanced cutting action ensures clean, accurate holes in multiple substrates
• Reinforced backing plate reduces tooth loss and deformation under load
• Universal arbor compatibility ensures secure fitment across standard power drill systems
• Ideal for professional trades including electrical, plumbing, HVAC, and general construction

Professional Summary

The Milwaukee® 49-56-0072 HOLE DOZER™ 1-3/8" Bi-Metal Hole Saw is a precision-engineered cutting tool designed for high-efficiency metal and composite applications. Its 3.5 TPI configuration, robust bi-metal construction, and advanced thermoset coating provide superior performance and longevity in field conditions. The innovative ALL-ACCESS SLOT system enhances workflow efficiency by simplifying plug removal and maintaining visibility during cutting. Optimized for use with cordless tools, this hole saw delivers up to 25% more holes per charge, making it a high-performance solution for professional contractors requiring reliable cutting results and minimal downtime.