SKU: 91492517512

Bosch HBT375 3-3/4 Inch Bi-Metal Hole Saw M42 Cobalt Alloy 5 TPI Progressor Tooth for Wood Metal and Plastic

Sale price$12.59 Regular price$13.99
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Ships within 48 hours · Estimated delivery Jul 29 - Aug 3

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Description

Bosch HBT375 3-3/4 Inch Bi-Metal Hole Saw M42 Cobalt Alloy 5 TPI Progressor Tooth for Wood Metal and PlasticROBUST M42 COBALT CONSTRUCTION FOR DEMANDING CUTS Experience superior durability and precision with the Bosch HBT375 3 3 4 Inch Bi Metal Hole Saw. Designed to withstand the rigors of professional use, this hole saw is crafted from Boschs enhanced M42 alloy material containing 8% cobalt. This premium composition provides excellent heat resistance, allowing the blade to stay sharper for longer even in high temperature applications. Whether you are

ROBUST M42 COBALT CONSTRUCTION FOR DEMANDING CUTS

Experience superior durability and precision with the Bosch HBT375 3-3/4 Inch Bi-Metal Hole Saw. Designed to withstand the rigors of professional use, this hole saw is crafted from Bosch’s enhanced M42 alloy material containing 8% cobalt. This premium composition provides excellent heat resistance, allowing the blade to stay sharper for longer even in high-temperature applications. Whether you are cutting into metal, stainless steel, wood, plastic, or drywall, this tool delivers the consistent performance and longevity needed for complex installations.

The HBT375 is engineered for efficiency on the job site. It utilizes the advanced "Progressor" tooth design with a 5 TPI configuration, ensuring faster cutting speeds and cleaner entry and exit holes. The innovative triangle "shark tooth" side slots effectively dissipate heat and solve the common issue of stuck plugs, making debris removal fast and effortless. Featuring a reinforced shoulder for added strength against high torque and a deep 1-3/4 inch cup to accommodate thicker materials, this hole saw is built to handle the toughest tasks with ease.

Key Features

  • M42 Cobalt Alloy: Contains 8% cobalt for superior heat resistance and up to 20% longer life in tough materials.
  • Progressor Tooth Design: Alternating tooth sizes (5 TPI) ensure faster cutting speeds and cleaner holes.
  • Triangle Slot Design: "Shark tooth" side slots allow for easy plug ejection and improved heat reduction.
  • Reinforced Shoulder: Adds structural strength to the base to prevent failure under heavy loads.
  • Deep Cup Capacity: 1-3/4 inch depth allows for drilling through thicker materials like 2x lumber and composite layers.
  • Multi-Material Versatility: Optimized for cutting wood, metal, plastic, drywall, and stainless steel.
  • Universal Compatibility: Works with standard large-diameter mandrels and SpinLOCK universal arbors (sold separately).

What's Included

(1) 3-3/4 Inch Bi-Metal Hole Saw (Arbor/Mandrel Sold Separately)

Specifications

Manufacturer Bosch
Model Number HBT375
Saw Diameter 3-3/4 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 Wood, Metal, Plastic, Drywall
Side Slots Triangle (Shark Tooth)
Package Quantity 1

Pro-Tip: To extend the life of your hole saw when drilling through metal, operate your drill at a lower RPM and apply a cutting fluid. This reduces friction and heat buildup, which helps preserve the cobalt teeth and ensures a smoother cut.

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: 91492517512

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Frank from Baltimore
Louisville, US
★★★★★ 5
Well made, a solid connection.
Size: 6 Pairs / 12 pcs
I liked them. They really lock down on the speaker wire to make a firm connection. They seem well made and are easy to install. My system sounds great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2026
M
Verified Purchase
Micky
Natrona Heights, US
★★★★★ 5
Works as intended
Size: 12 Pairs / 24 pcs
These banana plugs are quite easy to use, and securely connected my speaker cables to the receiver. They have a quality feel as well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 27, 2025
E
Verified Purchase
Eric Doka
San Leandro, US
★★★★★ 5
Solid product
Size: 12 Pairs / 24 pcs
High quality. Good connectivity.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
M
Verified Purchase
Matt B.
Lake Worth, US
★★★★★ 1
Tips broke in the binding post
Size: 12 Pairs / 24 pcs, Size: 12 Pairs / 24 pcs
UPDATE: Two tips broke off when unplugging them from the binding post and are now lodged in. Inexcusable and an utterly poor product. Solid connection in the binding post with no wobble or wiggle. They require some force to insert into the binding post, but once they're in they remain snug. I also tried removing and reinserting a few times and the connection remained solid. I've used other plugs in the past that have a softer tip and easily deform after one or two insertions. These do not have that issue.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 11, 2026
D
Verified Purchase
Dane W.
Los Angeles, US
★★★★★ 5
Great plugs
Size: 2 Pairs / 4 pcs
These are great plugs! Worked like it should!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 26, 2024

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