Studio view of the white Bosch HBT450 4-3/4 inch bi-metal hole saw featuring the red Bosch logo and triangular side slots.
Infographic highlighting the hole saw's key features: triangle slot design, enhanced M42 alloy, progressor tooth design, reinforced shoulders, and a deeper cup.
Action shot of a worker using a Bosch cordless drill and the white hole saw to cut into a gray metal electrical panel box.
Close-up of gloved hands attaching the white hole saw to a pilot bit and arbor assembly against a wooden background.
Macro view of the hole saw's cutting edge, showcasing the sharp, alternating bi-metal progressor tooth geometry.
High-angle action shot of the hole saw drilling a clean hole into a beige interior door panel, with wood shavings visible on the surface.
A worker using a Bosch drill and the white hole saw to cut a hole in a white countertop surface.
Close-up action shot of the hole saw cutting into the side of a metal electrical enclosure, highlighting the tool's metal-cutting capability.
Studio view of the white Bosch HBT450 4-3/4 inch bi-metal hole saw featuring the red Bosch logo and triangular side slots.
Infographic highlighting the hole saw's key features: triangle slot design, enhanced M42 alloy, progressor tooth design, reinforced shoulders, and a deeper cup.
Action shot of a worker using a Bosch cordless drill and the white hole saw to cut into a gray metal electrical panel box.
Close-up of gloved hands attaching the white hole saw to a pilot bit and arbor assembly against a wooden background.
Macro view of the hole saw's cutting edge, showcasing the sharp, alternating bi-metal progressor tooth geometry.
High-angle action shot of the hole saw drilling a clean hole into a beige interior door panel, with wood shavings visible on the surface.
A worker using a Bosch drill and the white hole saw to cut a hole in a white countertop surface.
Close-up action shot of the hole saw cutting into the side of a metal electrical enclosure, highlighting the tool's metal-cutting capability.
BOSCH

Bosch HBT475 4-3/4 Inch Bi-Metal Hole Saw M42 Cobalt Alloy 5 TPI Progressor Tooth for Wood Metal and Plastic

In stock
SKU: HBT475
$34.97

Description

INDUSTRIAL GRADE M42 COBALT PERFORMANCE FOR LARGE DIAMETER CUTTING

Power through large-scale drilling applications with the Bosch HBT475 4-3/4 Inch Bi-Metal Hole Saw. Designed for professional tradesmen, this heavy-duty cutter is engineered with Bosch’s enhanced M42 alloy material containing 8% cobalt. This premium composition delivers exceptional heat resistance and extends the tool's life by up to 20% compared to standard bi-metal saws. Whether you are cutting holes for HVAC ducting, plumbing pipes, or large recessed lighting fixtures, the HBT475 provides the durability required to drill through tough materials like metal, stainless steel, drywall, and wood without compromising performance.

Efficiency is built into the HBT475's design. It features the innovative "Progressor" tooth geometry with varying teeth sizes (5 TPI) to cut faster and produce cleaner edges. The unique triangle slot design on the side walls effectively dissipates heat and solves the common problem of stuck plugs, allowing for rapid debris removal. With a deep 1-3/4 inch cup to handle thick materials and a reinforced shoulder to prevent stress failure, this hole saw is a reliable workhorse for any job site. Note: Large diameter hole saws generate significant torque; use with a drill equipped with a side handle is recommended.

Key Features

  • M42 Cobalt Alloy: Contains 8% cobalt for superior heat resistance and 20% longer life in demanding applications.
  • Progressor Tooth Design: Alternating tooth sizes (5 TPI) ensure faster cutting speeds and cleaner entry/exit holes.
  • Triangle Slot Design: "Shark tooth" side slots allow for easy plug ejection and improved heat dissipation.
  • Deep Cup Capacity: 1-3/4 inch depth easily handles 2x lumber, thick drywall, and multi-layer composites.
  • Reinforced Shoulder: Adds structural strength to the base of the saw to prevent failure under high torque.
  • Multi-Material Versatility: Optimized for wood, plastic, metal, stainless steel, and drywall.
  • Universal Compatibility: Works with standard large-diameter mandrels and SpinLOCK universal arbors (sold separately).

What's Included

(1) 4-3/4 Inch Bi-Metal Hole Saw (Arbor and Pilot Bit Sold Separately)

Specifications

Manufacturer Bosch
Model Number HBT475
Saw Diameter 4-3/4 in.
Max Cutting Depth 1-3/4 in.
Teeth Per Inch (TPI) 5
Blade Material Bi-Metal M42 (8% Cobalt)
Tooth Design Progressor
Arbor Included No (Requires Large Mandrel)
Applications Drywall, Metal, Plastic, Wood
Side Slots Triangle (Shark Tooth)
Package Quantity 1

Pro-Tip: When cutting with large diameter hole saws (over 4 inches), operate your drill at a lower RPM to reduce heat buildup and maintain control. If cutting deep into wood, periodically back the saw out of the hole while spinning to clear sawdust from the gullets—this prevents binding and burning the wood.