Bosch HBT187 1-7/8 Inch Bi-Metal Hole Saw M42 Cobalt Alloy 5 TPI Progressor Tooth for Wood Metal and Plastic
SKU: 61043473665

Bosch HBT187 1-7/8 Inch Bi-Metal Hole Saw M42 Cobalt Alloy 5 TPI Progressor Tooth for Wood Metal and Plastic

Sale price$11.33 Regular price$12.59
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Description

Bosch HBT187 1-7/8 Inch Bi-Metal Hole Saw M42 Cobalt Alloy 5 TPI Progressor Tooth for Wood Metal and PlasticENHANCED DURABILITY AND SPEED WITH M42 COBALT TECHNOLOGY Upgrade your drilling performance with the Bosch HBT187 1 7 8 Inch Bi Metal Hole Saw. Engineered for the toughest job site challenges, this hole saw is crafted from Boschs enhanced M42 alloy material, containing 8% cobalt. This premium formulation provides superior heat resistance and increases the tool's life by up to 20% compared to standard bi metal saws. Whether you are cutting through wood,

ENHANCED DURABILITY AND SPEED WITH M42 COBALT TECHNOLOGY

Upgrade your drilling performance with the Bosch HBT187 1-7/8 Inch Bi-Metal Hole Saw. Engineered for the toughest job site challenges, this hole saw is crafted from Bosch’s enhanced M42 alloy material, containing 8% cobalt. This premium formulation provides superior heat resistance and increases the tool's life by up to 20% compared to standard bi-metal saws. Whether you are cutting through wood, heavy-duty metal, drywall, or plastic, the HBT187 delivers clean, precise cuts time and time again, making it a reliable staple for electricians, plumbers, and general contractors.

The design of the HBT187 is packed with efficiency-boosting features. It utilizes the "Progressor" tooth design with a 5 TPI configuration to cut faster and stay sharp longer. The innovative triangle slot design on the side walls solves the common frustration of stuck plugs, allowing for quick and easy debris removal while also reducing heat buildup during operation. With a reinforced shoulder for added strength and a deep 1-3/4 inch cup to handle thick materials, this hole saw is built to take a bite out of any project.

Key Features

  • Enhanced M42 Alloy: Features 8% cobalt composition for high heat resistance and up to 20% longer life.
  • Triangle Slot Design: "Shark tooth" side slots allow for easy plug ejection and improved heat dissipation.
  • Progressor Tooth Geometry: Alternating tooth sizes (5 TPI) ensure faster cutting speeds and cleaner holes.
  • Deep Cup Capacity: 1-3/4 inch cutting depth easily handles 2x lumber, thick drywall, and multilayered materials.
  • Reinforced Shoulder: Adds structural strength to the base of the saw to prevent failure under high torque.
  • Versatile Application: Optimized for cutting wood, plastic, metal, and stainless steel.
  • Universal Compatibility: Works with standard hole saw arbors and Spinlock universal arbors (sold separately).

What's Included

(1) 1-7/8 Inch Bi-Metal M42 Hole Saw (Arbor and Pilot Bit Sold Separately)

Specifications

Manufacturer Bosch
Model Number HBT187
Saw Diameter 1-7/8 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
Applications Wood, Metal, Plastic, Drywall
Weight 0.26 lbs
Side Slots Triangle (Shark Tooth)

Pro-Tip: To maximize the life of your M42 hole saw when drilling through metal, operate your drill at a lower RPM and apply cutting oil to the surface. This reduces friction and heat buildup, which keeps the cobalt teeth sharper for longer. Use the triangle side slots to lever out the material plug immediately after cutting to keep your workflow moving.

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: 61043473665

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Mary Freeman
Draper, US
★★★★★ 5
amazing
Color: Large Set of 4
good buy worked well
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Reviewed in the United States on April 13, 2026
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Steve
Natrona Heights, US
★★★★★ 4
3.5, Not 3.0
Color: Medium Set of 6
These balls were almost exactly what I needed. I was replacing my boy’s favorite ball, which is the 3” squeaky, spikey ball that fits in the chuck it launcher. Unfortunately I saw the shiny object next to it and because there were SIX balls and a dollar less, I failed to see that these are 3.5” balls instead of 3”…. Great balls but no fitty in the slingy. Buyer beware. No chuck it no problem. Save a buck.
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Reviewed in the United States on March 9, 2026
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HollisHoHo
Chelsea, US
★★★★★ 5
MY CHIHUAHUA LOVES THESE BALLS!!
Color: Samll Set of 8
My little chihuahua, BamBam, is addicted to balls, especially little balls that squeak! However, any balls that have material on them, BamBam will tear them apart, swallow the material and then get an upset tummy! These balls saved the day! BamBam LOVES them & she cannot tear them apart! They hold up so well! No matter how much BamBam plays with them, they keep squeaking away!
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Reviewed in the United States on July 15, 2025
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Laurens springerslng
Birmingham, US
★★★★★ 5
Great thick squeaky ball
Color: Large Set of 2
These are good thick rubbery squeaky balls. My boy loves them! He's 75lbs. Strong chewer. I hav hard time squeezing to squeak, but he doesn't... He loves it!!!
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Reviewed in the United States on March 24, 2026
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g a ross
Los Angeles, US
★★★★★ 5
Squeaky ball
Color: Large Set of 4
Perfect squeaky ball. Dogs love them. I love that they're durable and their thickness aids their durability. My Great Dane will play alone for hours with a ball.
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Reviewed in the United States on June 20, 2025

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