Studio view of the white Bosch HB550 5-inch hole saw featuring the red logo and angled side slots.
Side profile of the white hole saw displaying size markings "5 inch 127mm" and bi-metal construction text.
Bottom view of the hole saw's interior backplate showing the central arbor hole and surrounding pin drive holes.
Macro close-up of the white hole saw wall, highlighting the angled side slot and sharp bi-metal teeth.
Infographic showing a drill cutting into a metal box, with text highlighting the reinforced shoulder for added strength.
"Progressor Tooth Design" infographic illustrating the alternating small-to-large tooth pattern for faster cutting.
Material application grid displaying four squares: wood, plastic pipes, metal surface, and stainless steel.
Studio view of the white Bosch HB550 5-inch hole saw featuring the red logo and angled side slots.
Studio view of the white Bosch HB550 5-inch hole saw featuring the red logo and angled side slots.
Side profile of the white hole saw displaying size markings "5 inch 127mm" and bi-metal construction text.
Bottom view of the hole saw's interior backplate showing the central arbor hole and surrounding pin drive holes.
Macro close-up of the white hole saw wall, highlighting the angled side slot and sharp bi-metal teeth.
Infographic showing a drill cutting into a metal box, with text highlighting the reinforced shoulder for added strength.
"Progressor Tooth Design" infographic illustrating the alternating small-to-large tooth pattern for faster cutting.
Material application grid displaying four squares: wood, plastic pipes, metal surface, and stainless steel.
Studio view of the white Bosch HB550 5-inch hole saw featuring the red logo and angled side slots.
BOSCH

Bosch HB550 5-1/2 Inch Bi-Metal Hole Saw 8 Percent Cobalt Alloy Heavy Duty Cutter for Wood and Metal Applications

Only 3 left
SKU: HB550
$37.29 USD

Description

Bosch Promtional Logo Logout

Industrial Grade Cutting Performance: Bosch 5-1/2" Bi-Metal Hole Saw with 8% Cobalt

Engineered for the most demanding jobsite conditions, the Bosch HB550 5-1/2 Inch Bi-Metal Hole Saw is the definitive solution for large-diameter boring in wood and metal. This heavy-duty cutter features a high-performance 8% cobalt alloy construction, providing exceptional heat resistance and significantly extending tool life compared to standard bi-metal blades. Whether you are installing large-scale ventilation, plumbing stacks, or industrial electrical conduit, the unique Progressor tooth design ensures rapid material removal and a cleaner finish by optimizing the cutting angle throughout the rotation.

Durability is built into every aspect of the HB550. The reinforced shoulder design provides added strength to withstand the high torque generated by large-diameter cuts, preventing shell deformation during intense applications. With a generous 1-5/8 inch cutting depth, this hole saw easily clears standard 2x4 lumber and thick metal plating. Designed for maximum versatility, it is compatible with both standard mandrels and Bosch Quick Change systems (adapter sold separately), allowing professional contractors to transition between sizes in seconds without the need for additional tools.

Key Features

  • 8% Cobalt Alloy: Delivers higher heat resistance and superior longevity in abrasive metal applications.
  • Progressor Tooth Design: Specialized tooth geometry cuts faster and lasts longer across various materials.
  • Reinforced Shoulder: Heavy-duty build provides extra strength for high-torque industrial use.
  • Large Diameter Precision: 5-1/2 inch size is ideal for plumbing, HVAC, and electrical box installation.
  • 1-5/8" Cutting Depth: Provides ample clearance for boring through standard framing and thick substrates.
  • Universal Compatibility: Works with standard mandrels or Quick Change arbor systems.
  • High Carbon Steel Backing: Flexes to absorb impact while the cobalt teeth maintain their razor-sharp edge.

What's Included

  • (1) Bosch HB550 5-1/2 Inch Bi-Metal Hole Saw

Product Specifications

Brand Bosch
Model Number HB550
Cutting Diameter 5-1/2 in
Cutting Depth 1-5/8 in
Material Bi-Metal with 8% Cobalt Alloy
Teeth Per Inch (TPI) 5 TPI (Progressor Design)
Overall Length 1-1/8 in Shell Height
Arbor Size 1/4 in Compatible
Application Wood, Metal, Mild Steel, PVC
Pack Quantity 1 Each
Tooth Pitch Variable

Pro-Tip: When cutting through thick metal with a large-diameter hole saw like the HB550, use a lower drill speed (RPM) and apply a cutting lubricant. This prevents the cobalt teeth from overheating and ensures a much smoother, safer cut without the saw "grabbing" the material.