
MaxTool
MaxTool 6" Bi-Metal Hole Saw 152mm Cobalt High Speed Steel M42 Bimetal
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Highlights
- PREMIUM COBALT CONSTRUCTION: Features M42 8% cobalt high-speed steel cutting edge welded to a durable alloy steel body providing superior heat and wear resistance for efficient cutting through tough materials including metal, wood, plastic, and composite, making it an essential tool for contractors, electricians, plumbing, HVAC installations and DIY enthusiasts requiring precision larger hole cutting
- VARIABLE TOOTH DESIGN: Features 4/6 varied teeth per inch pattern that optimizes cutting performance and delivers smooth and fast cutting action, while reducing vibration and improving chip clearance for cleaner holes; 1.5-inch cut-depth allows for drilling through most stubs in a single pass
- VACUUM FURNACE HARDENED: Advanced vacuum hardened heat treatment process and precision-ground teeth ensure maximum durability, outstanding abrasion resistance, long-lasting sharp cutting edges, extended blade life and resist dulling for efficient fast, clean cuts even under demanding conditions
- UNIVERSAL THREAD CONNECTION: Standard 5/8-18UNF thread arbor connection fits most standard mandrels or arbors and cutting systems for quick and secure attachment
- CONVENIENT PACKAGING: Arrives in a protective color box for safe storage, transport, easy identification and easy organization in your workshop and toolbox
Why You'll Love It
- M42 8 percent cobalt steel edge cuts through metal, wood, plastic, and composite materials
- Variable 4/6 teeth per inch design reduces vibration and clears chips smoothly
- 1.5-inch cutting depth allows you to drill through most stubs in one pass
- Standard 5/8-18UNF thread fits most standard hole saw arbors and mandrels
- Vacuum furnace heat treatment helps the cutting edge resist wear and dulling
Pros
- +M42 8 percent cobalt cutting edge
- +Variable 4/6 TPI pattern reduces vibration
- +Standard 5/8-18UNF thread compatibility
- +1.5-inch cutting depth for single-pass stub drilling
- +Includes protective storage box
Cons
- -Arbor or mandrel not included in package
- -1.5-inch depth limit requires multiple steps for deeper materials
Detailed Review
The MaxTool 6-Inch Bi-Metal Hole Saw (152mm) is built for cutting large-diameter openings across tough construction materials. Designed for trade professionals like electricians, plumbers, and HVAC technicians as well as serious DIYers, it solves the challenge of drilling clean 6-inch holes through mixed materials without rapid blade wear.
The cutting edge uses M42 high-speed steel with 8 percent cobalt, welded directly to an alloy steel body. This composition provides heat and abrasion resistance when drilling through metal, wood, plastic, and composites. Hardened via a vacuum furnace heat-treatment process, the precision-ground teeth resist dulling under demanding cutting conditions.
To keep cuts smooth, the saw features a variable 4/6 teeth per inch (TPI) design. This alternating tooth pattern actively lowers vibration and improves chip clearance while cutting. The 1.5-inch cutting depth enables single-pass drilling through standard stubs, while the standard 5/8-18UNF thread arbor connection pairs easily with most common mandrels and cutting systems.
Because this product is sold as a standalone hole saw, you will need to supply your own compatible 5/8-18UNF arbor and pilot bit to use it. Additionally, while the 1.5-inch cutting depth covers most stubs in one pass, thicker materials will require clearing the core before drilling deeper.
Verdict: The MaxTool 6-inch hole saw is a durable, heat-resistant choice for anyone needing large openings in metal, wood, or composite surfaces. It is well-suited for trade contractors and home renovators with an existing 5/8-18UNF arbor setup.
Specifications
- Diameter: 6 inches (152mm)
- Cutting Depth: 1.5 inches
- Tooth Pitch: 4/6 variable TPI
- Cutting Edge Material: M42 8% cobalt high-speed steel
- Body Material: Alloy steel
- Thread Connection: 5/8-18UNF
- Hardening Process: Vacuum furnace heat treatment
Who Should Buy It
A great fit if you:
- Need to cut large 6-inch (152mm) holes for plumbing, electrical, or HVAC ductwork
- Work with a variety of materials including metal, wood, plastic, and composites
- Already own a standard 5/8-18UNF threaded mandrel or arbor
Consider something else if you:
- Need an all-in-one kit that includes the pilot bit and arbor
- Require a cutting depth greater than 1.5 inches in a single continuous pass
FAQ
What materials can this hole saw cut?
It is designed to cut through metal, wood, plastic, and composite materials.
What type of arbor connection does it use?
It features a standard 5/8-18UNF thread connection that fits most standard arbors and mandrels.
What is the cutting depth?
The hole saw provides a 1.5-inch cut depth, allowing for drilling through most stubs in a single pass.
What material is used for the cutting edge?
The cutting edge is made from M42 8 percent cobalt high-speed steel welded to an alloy steel body and hardened in a vacuum furnace.
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Product Specs
| Specification | Details |
|---|---|
| Brand Name | MaxTool |
| Model | BM03W44R600 |
| Warranty Description | NO |
| UPC | 634301934223 |
| Number of Items | 1 |
| Set Name | MaxTool 6" Bi-Metal Hole Saw |
| Manufacturer | Tianshun |
| Part Number | BM03W44R600 |
| Best Sellers Rank | #129,698 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #217 in Hole Saws |
| ASIN | B079NC3K8L |
| Customer Reviews | 4.5 4.5 out of 5 stars (250) 4.5 out of 5 stars |
| Item Dimensions L x W | 6"L x 6"W |
| Item Thickness | 1.5 inches |
| Item Weight | 815 g |
| Color | White |
| Style Name | Traditional |
| Material Type | High Speed Cobalt |
| Number of Teeth | 152 |
| Compatible Devices | Power Drill Machines |
| Compatible Material | Metal, Wood, Plastic, Composite |
| Material | High Speed Cobalt |
| Brand | MaxTool |
| Product Dimensions | 6"L x 6"W |
| Style | Traditional |






