Introducing the Bosch Bi-Metal Hole Saw 4.5 in. (Model HBT450), engineered for pros who demand clean, reliable performance in wood, metal and plastic. Its rugged M42 cobalt-alloy construction stands up to high temperatures for long life, while the Progressor™ tooth pattern slices faster and reduces wandering. Thoughtful details—like Triangle™ chip-clearance slots and reinforced shoulders—keep cutting cool and smooth, and make plug removal a breeze.

Key Features

• M42 cobalt-alloy bi-metal construction for superior strength and heat resistance
• Progressor™ alternating-tooth design delivers faster, smoother cutting in multiple materials
• Triangle™ chip-clearance slots reduce heat buildup and speed material ejection
• Reinforced shoulders provide stability under heavy load and extend tool life
• Optimized plug-removal bar for quick, hassle-free clean-out

⚠️ WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.