SIZE MATTERS. The New Grex GC1850 Cordless 2" 18 Gauge Brad Nailer - the most compact and lightest weight cordless finish nailer; with NO compromise on power. Grex has engineered the first cordless finish nailer that is similar in size, weight, balance and power as a traditional pneumatic 18 gauge brad nailer. Plus this is all achieved with the same award winning all-metal robust build quality that users have trusted for 20 years.