OMER MG.40 21 Gauge 1/2" - 1-9/16" 21 Gauge Pin & Brad Nailer #1220810MG. 40 Code: #1220810 Characteristics: standard magazine, side loading Trigger type: single sequential actuation The MG. 40 is a classic 21 gauge "micro headed bradder" known all round the world for the excellent results in a variety of applications. It provides an extra range of slightly longer fasteners to compliment the use of Omer's next size down MG. 30 Micro head Bradder. The MG. 40 tool fires up to 1 9 16" and nicely addresses a variety of