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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Schwartz
Phoenix, US
★★★★★ 5
This shirt checked all the boxes, comfort, fit and feel.
Size: 3X-Large, Color: Teal 02, Size: 3X-Large, Color: Teal 02
OMG! what a nice shirt. The pattern is awesome and the material is very soft and light weight. It is so breathable. Material has a bit of stretch so it very comfortable sitting or standing and does not wrinkle. I will be ordering at least on more in another color
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Reviewed in the United States on May 18, 2026
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Tyler
Phoenix, US
★★★★★ 5
Surprisingly awesome. Seriously. And I hate buying clothes.
Size: X-Large, Color: Black
I'm 6'1", 215 with large shoulders and chest. "Athletic dad-bod." Nothing fits me perfectly. I'm constantly stuck between an XL and XXL shirt, and a 37x31 pant---so literally nothing fits me and if you're a big guy, we all know that most polo shirts look like crap and fit like garbage bags. The shiny tone first made me skeptical. I wasn't even going to take it out of the package. But for $19, I said screw it. It fits really well. Not slim fit, but not "Ralph Lauren trash bag regular fit." It's soft like textured silk. It looks good and is the perfect length if you're 6'-6'3. And no--I know your first thought with the texture and shine is "does it look like a cheesy club shirt on a NJ Italian guy?" Shockingly, no...it's actually really nice (yeah--I had the same thought). It's stretchy. It's relatively form fitting, and it's cool to the touch. I immediately bought 3 more. For $19--just buy it. You won't regret it.
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Reviewed in the United States on December 21, 2025
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Eswaran Venkatesan
Alexandria, US
★★★★★ 5
Good quality
Size: Small, Color: Teal 02
This Tshirt is comfortable and value to money. No need to IRON. Material quality I liked it.
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Reviewed in the United States on May 27, 2026
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Niko Garcia
Cuba, US
★★★★★ 4
Good shirt
Size: Medium, Color: Teal 02
Love the color and the design of the shirt. The small threads it’s made out of starting to come loose though. Now when look down at chest and stomach area, there are 15+ little strings that pop out of the shirt.
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Reviewed in the United States on April 25, 2026
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Greg
Whiting, US
★★★★★ 5
Awesome shirt!
Size: Medium, Color: Blue, Size: Medium, Color: Blue
This is a nice shirt! Let me start by saying I am 6 foot 2, 195pounds with about a 40 inch chest, 42 inches on a good day! Ha ha. I ordered a medium because I wanted an athletic fit. The medium fits just right. For those wanting a normal, roomier fit I would recommend the large for my size. I’ll get a lot of compliments when I wear this shirt. What I like about it is that it is wrinkle free and looks great, I would not wear it on a super hot day with a snug fit. I do live in Florida, so that makes a difference. I also ordered the black one, both the blue and the black look very good for dress /casual. It’s polyester so it’s not super soft, which is OK. That also means it does not shrink.
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Reviewed in the United States on October 4, 2025

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