Studio view of the white Bosch HBT338 bi-metal hole saw featuring red logo text and triangular side slots.
Infographic displaying the hole saw features including triangle slot design, enhanced M42 alloy, progressor tooth design, reinforced shoulders, and a deeper cup.
Overhead action shot of a cordless drill with the hole saw cutting a hole into a beige wooden door panel.
A worker uses a Bosch drill and the hole saw to cut through the side of a grey metal electrical panel box.
A contractor uses a cordless drill and hole saw to cut a hole in a white countertop surface over a sink template.
Hands wearing protective gloves attaching the white hole saw cup to a drill arbor.
Macro view of the hole saw's cutting edge highlighting the sharp, alternating progressor tooth geometry.
Overhead action shot of a cordless drill with the hole saw cutting a hole into a beige wooden door panel.
Studio view of the white Bosch HBT338 bi-metal hole saw featuring red logo text and triangular side slots.
Infographic displaying the hole saw features including triangle slot design, enhanced M42 alloy, progressor tooth design, reinforced shoulders, and a deeper cup.
Overhead action shot of a cordless drill with the hole saw cutting a hole into a beige wooden door panel.
A worker uses a Bosch drill and the hole saw to cut through the side of a grey metal electrical panel box.
A contractor uses a cordless drill and hole saw to cut a hole in a white countertop surface over a sink template.
Hands wearing protective gloves attaching the white hole saw cup to a drill arbor.
Macro view of the hole saw's cutting edge highlighting the sharp, alternating progressor tooth geometry.
Overhead action shot of a cordless drill with the hole saw cutting a hole into a beige wooden door panel.
BOSCH

Bosch HBT338 3-3/8 Inch Bi-Metal Hole Saw M42 Cobalt Alloy 1-3/4 Inch Deep Cut for Wood Metal and Plastic

In stock
SKU: HBT338
$18.95 USD

Description

EXPERIENCE SUPERIOR LIFE AND SPEED WITH M42 COBALT ALLOY

Elevate your drilling performance with the Bosch HBT338 3-3/8 Inch Bi-Metal Hole Saw, engineered for professionals who demand durability and versatility. Crafted from an enhanced M42 alloy containing 8% cobalt, this hole saw is built to withstand high-temperature applications, delivering up to 20% longer life than standard bi-metal saws. Whether you are cutting through tough metal, wood, drywall, or plastic, the reinforced shoulder design provides added strength to handle deep cuts with precision and stability.

Efficiency is at the core of the HBT338 design. It features a unique "Triangle Slot" architecture that significantly improves plug removal and reduces heat buildup during operation. Combined with Bosch's innovative Progressor tooth design—which utilizes alternating tooth sizes—this accessory cuts faster and stays sharper longer across multiple materials. With a generous 1-3/4 inch cutting depth, this tool is the ideal solution for clean, deep boring in complex construction and renovation projects.

Key Features

  • Enhanced M42 Alloy: Contains 8% cobalt to resist high heat and deliver 20% longer service life.
  • Progressor Tooth Design: Alternating tooth sizes ensure faster cutting and superior performance in wood, metal, and plastic.
  • Triangle Slot Design: Specialized "shark tooth" side slots allow for rapid, easy plug removal and better heat dissipation.
  • Deep Cut Capacity: Features a 1-3/4 inch cutting depth to handle thicker materials and multi-layer applications.
  • Reinforced Shoulders: Structural reinforcement adds strength to the saw cup for heavy-duty use.
  • Multi-Material Versatility: Optimized for clean cuts in drywall, metal, plastic, and wood.

What's Included

(1) 3-3/8 Inch Bi-Metal Hole Saw (Arbor and Pilot Bit Sold Separately)

Specifications

Manufacturer Bosch
Model Number HBT338
Saw Diameter 3-3/8 in.
Max Cutting Depth 1-3/4 in.
Body Material Bi-Metal M42 (8% Cobalt)
Arbor Included No (Sold Separately)
Application Drywall, Metal, Plastic, Wood
Tooth Design Progressor (Alternating Pitch)
Weight 0.74 lbs
Product Type Hole Saw Cup

Pro-Tip: The "Triangle Slots" on the side of the cup are not just for cooling; they are designed for leverage. If a wood plug gets stuck inside the cup after drilling, insert a flathead screwdriver into the wide part of the triangle slot and twist to easily pop the plug out without damaging the teeth.