From the Manufacturer

The Bosch 1638 rotary cutter features a powerful 3.6 amp motor with 1/4-inch and 1/8-inch collet capacities. The removable depth guide adjusts and detaches in seconds. This tool is used for in-place cutouts in a wide variety of materials, including ceramic tile, drywall, and laminate. It’s the ultimate tool for cutting windows, pipes, electrical outlets, and other on-the-job items.

Features

• Produces fast, clean cutouts in a wide variety of building materials
• Use to make in-place cutouts in electrical outlets, windows, pipes, etc.
• Compact ergonomic design is easy and comfortable to use
• Powerful 3.6 amp motor
• Removable depth guide adjusts and attaches/detaches in seconds; patent pending
• Accepts 1/4- and1/8-inch collets directly
• No adapters are required
• Easy on/off switch
• 10-foot cord

Specifications

• Rating: 120 volts AC
• Amps: 3.6 amps
• No-load speed: 30,000 rpm
• Collet capacity: 1/4 inch
• Motor diameter: 2-5/8 inches
• Weight: 2.4 lbs.

Includes

• 1/8-inch collet
• 1/4-inch collet
• 1/8-inch general purpose bits
• 1/8-inch guide-point drywall bit
• Depth guide
• Open-end wrench

Warranty
This Bosch power tool comes with a one-year limited warranty from the date of purchase.