Bosch Rotary Cutout Saw GCU18V-30N 1/8 Inch Multi Collet Gypsum Router Bare Tool (18V Brushless 30000 RPM IP5X Electric Box Ceiling Tile Trimming)

Bosch GCU18V-30N 18V Brushless Drywall Cut-Out Tool - Bare Tool

The Bosch GCU18V-30N 18V brushless cordless cut-out tool executes rapid, high-precision plunge cuts and perimeter tracing around electrical outlet boxes, recessed can lights, HVAC duct registers, and window openings across drywall, acoustic ceiling tile, plasterboard, and thin plywood panels. Powered by a high-efficiency brushless motor spinning guide bits at 30,000 RPM, this 2.1-lb rotary saw delivers up to 300 linear feet of cutting capacity per charge with an 18V CORE18V 4.0Ah battery while maintaining steady rotational torque under load. Built with an IP5X dust-sealed power switch, an integrated electronic motor brake, tool-free depth-adjustable base footplate, multi-collet chuck architecture, and an LED cut-line work light, it provides commercial drywallers and interior systems contractors with unmatched one-handed agility and jobsite air quality compliance.

**Battery and charger sold separately.

Best Used For:

• Single and Multi-Gang Electrical Box Cutouts: Tracing and plunging clean rectangular openings around electrical switch and outlet boxes directly through 1/2-inch and 5/8-inch gypsum wallboard.
• Acoustic Ceiling Tile and Recessed Light Fitting: Routing circular cutouts for round junction boxes and recessed can fixtures in drop-ceiling panels and drywall ceilings.
• HVAC Supply Register and Pipe Penetrations: Cutting custom access openings for sheet metal duct boots, plumbing stub-outs, and utility access panels in residential and commercial framing.

Key Performance & Safety Features

• 30,000 RPM Brushless Motor: Delivers corded-class rotational speed to power through tough drywall and wood substrates cleanly without burning bit edges.
• IP5X Dust-Protected Switch: Rugged sealed internal switch barrier prevents abrasive gypsum dust ingress, extending electrical switch life in harsh drywall hanging conditions.
• Rapid Electronic Motor Brake: Instantly arrests bit rotation upon switch release, maximizing operator safety and speeding up workflow between cuts.
• Multi-Collet Chuck Architecture: Accepts 1/8-inch, 5/32-inch, and 1/4-inch collets to accommodate standard guide-point drywall bits and heavy-duty spiral router bits.
• Tool-Free Depth-Adjustable Footplate: Allows quick setting of cut depths to prevent piercing underlying electrical wiring, plumbing pipes, or vapor barriers inside wall cavities.
• Integrated LED Work Light & Vacuum Hood: Illuminates scribed layout marks in shadowed wall bays while the included dust shroud attaches to vacuum extractors for clean cutting passes.

What's Included

• (1) Bosch GCU18V-30 18V Brushless Cut-Out Tool (Bare Tool)
• (2) 1/8-Inch Guide-Point Drywall Router Bits
• (1) 1/8-Inch Collet
• (1) 1/4-Inch Collet
• (1) 5/32-Inch Collet
• (1) Snap-On Dust Extraction Hood
• (1) Adjustable Base Depth Footplate
• (1) Reversible Metal Belt Clip

Technical Specifications

Pro-Tip: Set the adjustable footplate so the guide-point bit flute extends only 1/8-inch past the rear surface of your gypsum board; setting minimum clearance prevents the spinning bit from nicking electrical wire jackets inside framing stud bays.