Bosch HBT450 4-1/2 Inch Bi-Metal Hole Saw M42 Cobalt Alloy 5 TPI Progressor Tooth for Wood Metal and Plastic
SKU: 29503891112

Bosch HBT450 4-1/2 Inch Bi-Metal Hole Saw M42 Cobalt Alloy 5 TPI Progressor Tooth for Wood Metal and Plastic

Sale price$34.46 Regular price$38.29
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Description

Bosch HBT450 4-1/2 Inch Bi-Metal Hole Saw M42 Cobalt Alloy 5 TPI Progressor Tooth for Wood Metal and PlasticINDUSTRIAL STRENGTH AND SPEED FOR LARGE DIAMETER APPLICATIONS Maximize your productivity on the job site with the Bosch HBT450 4 1 2 Inch Bi Metal Hole Saw. Engineered for professionals who demand reliability, this hole saw is constructed from Boschs enhanced M42 alloy material, which contains 8% cobalt. This premium composition offers superior heat resistance and extends the tool's life by up to 20% compared to standard bi metal cutters. It is the

INDUSTRIAL STRENGTH AND SPEED FOR LARGE DIAMETER APPLICATIONS

Maximize your productivity on the job site with the Bosch HBT450 4-1/2 Inch Bi-Metal Hole Saw. Engineered for professionals who demand reliability, this hole saw is constructed from Bosch’s enhanced M42 alloy material, which contains 8% cobalt. This premium composition offers superior heat resistance and extends the tool's life by up to 20% compared to standard bi-metal cutters. It is the ideal choice for drilling large, clean holes in tough materials such as metal, stainless steel, wood, drywall, and plastic, making it a staple for electricians, plumbers, and general contractors.

The HBT450 is designed to solve common drilling frustrations. It features the innovative "Progressor" tooth geometry with an alternating 5 TPI pattern, ensuring faster cutting speeds and reduced vibration. The unique triangle "shark tooth" side slots improve heat dissipation and make plug removal efficient and hassle-free. With a reinforced shoulder for added strength against high torque and a deep 1-3/4 inch cup to handle thick materials, this hole saw delivers consistent performance cut after cut.

Key Features

  • M42 Cobalt Alloy: Contains 8% cobalt for exceptional heat resistance and significantly longer tool life.
  • Progressor Tooth Design: Alternating 5 TPI geometry cuts faster and cleaner in wood, metal, and plastic.
  • Triangle Slot Design: Specialized side slots allow for easy plug ejection and efficient heat reduction.
  • Reinforced Shoulder: Provides structural stability and prevents stress failure during heavy-duty use.
  • Deep Cup Capacity: 1-3/4 inch cutting depth easily accommodates 2x lumber and thick composite materials.
  • Multi-Material Versatility: Optimized for cutting wood, drywall, plastic, metal, and stainless steel.
  • Universal Compatibility: Compatible with standard large-diameter mandrels and quick-change systems (sold separately).

What's Included

(1) 4-1/2 Inch Bi-Metal Hole Saw (Arbor/Mandrel Sold Separately)

Specifications

Manufacturer Bosch
Model Number HBT450
Saw Diameter 4-1/2 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
Product Weight 1.18 lbs
Package Quantity 1

Pro-Tip: Safety is key when using large diameter hole saws like this 4-1/2 inch model. The rotational force can be significant when the saw engages the material. Always use a drill equipped with a side handle to maintain a secure grip and prevent wrist injury from "kickback."

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 29503891112

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AmazonUser333
Chelsea, US
★★★★★ 5
Great for creating a workspace
Color: Grey
I needed a room divider that could be easily folded for storing to put behind my chair during my work calls. This works perfectly! Was very easy to put together. Lightweight but sturdy enough that it won’t fall over.
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Reviewed in the United States on February 27, 2026
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Isa Rincon
Louisville, US
★★★★★ 2
Base part of it
Color: Black
Even though I kept this it’s very uncomfortable because of the way the base works . They are very long at the bottom and it’s hard to open and close
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Reviewed in the United States on March 15, 2026
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MARIAH DANN
Louisville, US
★★★★★ 5
Great room separator
Color: Black
The panels are much longer than we expected! We only needed 3 of the 4 proivided. It's slightly flimsy, but holds together nicely. The screwdriver that came with did not fit the screws, but luckily we had a Phillips head. It's very lightweight. It is definitely a good value for the money.
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Reviewed in the United States on February 10, 2026
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Tink
Lowell, US
★★★★★ 1
Never got to try it because it was broken
Color: Black
Came with a broken piece and is taking forever to get a refund…there wasn’t an option for a replacement
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Reviewed in the United States on March 15, 2026
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Estefani T
Houston, US
★★★★★ 3
Room divider
Color: Black, Color: Black
It was much simpler than anticipated. I don't think it's very sturdy and it lacks weight, but it's attractive.
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Reviewed in the United States on March 20, 2026

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