Bosch Hole Saw HB169 1-11/16 Inch Daredevil Bi-Metal Cobalt Core Architectural Cutter (5 TPI Progressor Alternating Teeth Multi Material Securement)

Professional 1-11/16-Inch M42 Cobalt Alloy Bi-Metal Multipurpose Hole Saw with 1-5/8-Inch Cutting Depth and Variable Progressor Tooth Geometry

The Bosch 1-11/16 Inch Bi-Metal Hole Saw HB169 8% Cobalt Alloy 5 TPI Progressor Tooth for Wood and Metal delivers specialized deep boring utility and exceptional multi-material cutting efficiency across demanding trade layout arrays, commercial HVAC duct routing setups, and heavy electrical junction box retrofits. Engineered from premium bi-metal matrices enriched natively with 8% structural cobalt tool alloy, this high-performance layout tool accessory withstands extreme thermal heat accumulation zones without tooth fracturing or tracking path drift errors. This professional contractor solution resolves frequent accessory replacement holdups when passing through heterogeneous building layers, high-friction plug extraction stalls, and structural cup wall distortion errors under load by combining a beefed-up reinforced shoulder cap geometry with an aggressive Progressor tooth pitch array and a universal mandrel matching foundation. Outfitted with an exact 1-11/16 inch circular boring track diameter, a massive 1-5/8 inch clearing cup capacity profile, and structural optimization for all high-torque commercial drilling rigs, this robust heavy utility cutter optimizes subcontractor project turnaround timelines during pipe pass-through installations, structural wood plate custom cuts, and continuous sheet profiling routines.

Best Used For:

• Multi-Layered Wall Penetration: Coring clean 1-11/16 inch circular channels natively through architectural barriers containing thick wood headers, drywall blocks, and aluminum sheets single-handedly without blade swapping down times.
• Subcontractor Utility Rough-ins: Excavating wide structural drainage ports, waste line junctions, and technical pipeline runs cleanly through dense subfloor decks, framing timber plates, and technical polymer conduits.
• Commercial Junction Box Staging: Pre-drilling accurate circular entry tracks, knockouts, and alignment tracks into structural steel boxes, distribution arrays, and metallic ventilation frames.

Key Performance & Safety Features

• M42 Cobalt Metallurgical Base: Advanced 8% cobalt-infused matrix teeth isolate high friction stresses, yielding superior operational tool life boundaries than standard bi-metal configurations.
• Progressor Alternating Tooth Pitch: Proprietary varying tooth sizes speed up material removal rates natively while lowering mechanical vibration feedback on high-velocity sizing sweeps.
• Reinforced Heavy Shoulder Build: Stiffened rear baseplate thickness stabilizes structural integrity loops under maximum physical force peaks, checking linear runout deviations entirely.
• Universal Compatibility: Precision-threaded hubs accept standard hole saw arbors and adapt to quick-change mandrel systems natively for rapid sizing adjustments.
• Deep Boring Capacity: Robust 1-5/8 inch internal clearance path enables quick single-pass cuts through layered construction lumber, bypassing double-sided tracking workflows.

What's Included

• (1) Bosch 1-11/16-Inch M42 Cobalt Bi-Metal Multipurpose Deep Cup Hole Saw Unit (HB169)
• **Arbor and pilot bit sold separately.

Technical Specifications

Pro-Tip: When using this tool to bore through thick structural alloy panel walls, apply a constant thread of high-viscosity structural layout tool oil directly into the tooth path. Suppressing extreme friction spikes maximizes the 8% M42 cobalt lifespan, checks aggregate edge chipping bounds, and evacuates metal chips down extraction slots cleanly.