4-1/8" Bi-Metal Hole Saw Bulk, Rip Guard 3.5 TPI

Milwaukee® 49-56-0217 HOLE DOZER™ 4-1/8" Bi-Metal Hole Saw – Technical Product Information

The Milwaukee® 49-56-0217 HOLE DOZER™ 4-1/8" Bi-Metal Hole Saw is engineered for precision cutting and long-lasting durability in professional-grade applications. Featuring Milwaukee’s advanced 3.5 TPI variable pitch tooth geometry, this tool delivers faster cutting performance, reduced vibration, and extended service life when used on metal and composite materials. Constructed with Matrix II high-speed steel teeth reinforced by 8% cobalt, the hole saw provides exceptional heat and wear resistance under demanding jobsite conditions. Its ALL-ACCESS SLOT™ design simplifies plug removal, enhances chip clearance, and improves pilot visibility, reducing downtime and maximizing productivity. The Thermoset Coating minimizes friction, allowing for cooler operation and improved energy efficiency, particularly with cordless equipment. Proudly made in the USA, this HOLE DOZER™ hole saw provides consistent, professional results in industrial and construction environments.

Technical Specifications

• Manufacturer: Milwaukee Tool
• Model Number: 49-56-0217
• Series: HOLE DOZER™ Bi-Metal Series
• Tool Type: Bi-Metal Hole Saw
• Diameter: 4-1/8 inches (104.8 mm)
• Tooth Design: 3.5 TPI variable pitch for improved cutting speed and efficiency
• Tooth Material: Matrix II high-speed steel with 8% cobalt for maximum durability and heat resistance
• Body Construction: Reinforced alloy steel for strength and stability under heavy loads
• Cutting Depth: 1-5/8 inches (41.3 mm)
• Slot Design: ALL-ACCESS SLOT™ for faster plug ejection and better chip removal
• Surface Finish: Thermoset Coating to reduce friction and maintain cooler cutting temperatures
• Optimized For: Corded and cordless power tools
• Battery Efficiency: Increases cordless performance by up to 25% more holes per charge
• Applications: HVAC duct openings, conduit installation, electrical rough-ins, plumbing penetrations, and mechanical systems
• Material Compatibility: Ferrous and non-ferrous metals, stainless steel, aluminum, PVC, wood, and composites
• Compatible Arbor Types: Standard and quick-change arbors with pilot bits
• Recommended Speed Range: Variable depending on substrate; reference Milwaukee’s cutting speed chart for optimal performance
• Drill Compatibility: Suitable for handheld drills, drill presses, and magnetic bases
• Manufacturing Origin: Made in the USA
• Warranty: Lifetime Tooth Break Warranty

Design and Performance Features

• 3.5 TPI variable pitch configuration minimizes vibration and maximizes cutting speed
• Matrix II bi-metal teeth with 8% cobalt for increased wear resistance and tool longevity
• Reinforced alloy steel body provides superior rigidity and hole precision
• ALL-ACCESS SLOT™ simplifies plug removal, improves chip evacuation, and increases productivity
• Enhanced pilot bit visibility for precise hole placement and smoother starts
• Thermoset Coating reduces friction and heat buildup, extending service life
• Optimized for cordless systems to enhance energy efficiency and reduce downtime
• Precision-balanced construction for reduced operator fatigue and improved stability
• Built to professional-grade tolerances and quality standards for jobsite reliability

Professional Summary

The Milwaukee® 49-56-0217 HOLE DOZER™ 4-1/8" Bi-Metal Hole Saw provides a high-performance cutting solution engineered for professionals in construction, fabrication, and mechanical trades. With Matrix II bi-metal teeth, an advanced ALL-ACCESS SLOT™ design, and a Thermoset Coating for reduced friction, it achieves superior cutting speed and durability across a range of materials. Optimized for cordless applications and supported by Milwaukee’s Lifetime Tooth Break Warranty, this hole saw delivers consistent results and long-term dependability on demanding jobsites.