LENOX Bi-Metal Speed Slot Hole Saw 4-1/2 in - Faster Cuts, Durable

In this review of the LENOX Bi-Metal Speed Slot Hole Saw with T3 Technology, 4-1/2 in, the bottom line is simple: this is a tool for tradespeople and serious DIYers who need faster, cleaner holes through metal and wood without frequent blade changes. The saw's T3 tooth geometry and thicker walls deliver noticeably improved life and cut speed compared with earlier LENOX models, and the SPEED SLOT staircase makes plug removal painless. If you value durability and cut quality when working on aluminum, sheetmetal or two-by lumber, this hole saw is worth considering.

Key Features

• T3 Technology: Enhanced tooth geometry cuts up to 50% faster than previous LENOX hole saws, reducing time on each hole.
• Increased wall thickness: Thicker walls improve durability and help minimize tooth loss when cutting tougher metals.
• Optimized teeth: Larger, sharper teeth are designed for easier penetration through metal and cleaner through-cuts in wood.
• SPEED SLOT staircase: A wide, low slot with multiple leverage points makes plug ejection quick and prevents plugs from becoming stuck.
• Taller cup height: Being 10% taller than previous models yields cleaner cuts in two-by lumber and more material engagement.

Who It's For

The LENOX 4-1/2 in hole saw is best suited to electricians, HVAC technicians, metal fabricators and experienced DIYers who frequently bore holes in thin to moderate metals, aluminum, fiberglass and common lumber. It is a good choice where faster cutting and longer tool life translate to fewer interruptions and lower cost per hole.

Those working exclusively in very hard or abrasive materials, or who require specialty tooth profiles for cast iron or masonry, should look for purpose-built cutters. Occasional hobby users who rarely cut metal may find less expensive options acceptable for their needs.

Pros & Cons

Pros

• Twice the durability versus the previous generation means fewer replacements on metal jobs.
• Faster cutting speed thanks to the T3 tooth geometry saves time on repetitive holes.
• SPEED SLOT design makes plug removal simple and reduces downtime while clearing chips.
• 10% taller cup and sharper teeth deliver cleaner hole edges in wood and composite materials.

Cons

• Some users report mixed durability compared with other premium bits, so extreme heavy daily use may still lead to tooth loss over time.
• As a general-purpose bi-metal saw, it is not optimized for highly abrasive or specialty materials like cast iron or masonry.

Specifications

Brand	Lenox
Diameter	4-1/2 in (114 mm)
Construction	Bi-metal with T3 tooth geometry
Wall thickness	Increased wall thickness for improved durability
Special feature	SPEED SLOT staircase for easy plug ejection
Cup height	10% taller than previous models for cleaner cuts

Our Verdict

The LENOX Bi-Metal Speed Slot Hole Saw 4-1/2 in is a smart pick for pros and serious DIYers who need faster, cleaner holes in common metals and wood while reducing blade changes. Its improved durability and plug-ejection design deliver strong value for routine trade use, though users with highly specialized cutting needs should choose application-specific cutters.

Frequently Asked Questions

Can this hole saw cut sheetmetal?
Yes; customers report clean cuts through aluminum and thin sheetmetal, including 18 gauge, when using appropriate feeds and speeds.

How does plug removal work?
The SPEED SLOT staircase has a low wide slot and leverage points that let you pry plugs out easily with a screwdriver.

Is this saw more durable than older models?
Yes; improved wall thickness and T3 tooth geometry make it up to 2X more durable than the previous LENOX generation in typical metal cutting.