Bosch GMA 55 Collated Screw Attachment for Drywall Screwdrivers

The Bosch GMA 55 is a collated screw attachment designed for use with Bosch Professional drywall screwdrivers, enabling faster and more comfortable screw fixing — ideal for drylining contractors, joiners, and carpenters working on repetitive boarding tasks.

Weighing less than 0.4 kg, the GMA 55 is designed to reduce fatigue during sustained use, including overhead work such as fixing drywall panels to ceilings. The thumbwheel depth adjustment allows quick setting changes without interrupting workflow, and screw length can be adjusted without tools — a practical time-saver on site.

The attachment accepts drywall screws from 25 mm to 55 mm in length with a maximum diameter of 5 mm. Its open-frame design minimises dust build-up and makes cleaning straightforward, helping to extend the service life of the attachment.

Compatible with all Bosch Professional corded and cordless drywall screwdrivers, including the GTB 18V-45, GTB 12V-11, and GSR 18 V-EC TE. When paired with the GTB 18V-45, the PowerSAVE mode remains fully functional with the GMA 55 mounted. A PH2 screwdriver bit (145 mm) is included.

Features and Benefits:
• Auto-feed collated attachment for faster, more consistent drywall screw fixing
• Thumbwheel depth adjustment for quick, precise setting changes
• Tool-less screw length adjustment — no additional equipment needed on site
• Open-frame design resists dust deposits and simplifies cleaning
• Compatible with all Bosch Professional corded and cordless drywall screwdrivers
• PowerSAVE mode remains active when used with Bosch GTB 18V-45

Specifications:
Length: 201 mm
Width: 63 mm
Height: 121 mm
Net Weight: 0.39 kg
Max. Screw Diameter: 5 mm
Max. Screw Head Diameter: 9.5 mm
Screw Length Range: 25–55 mm

Contents:
1 x Screwdriver Bit PH2 (145 mm)