๐ Able to drive max 25 mm staple leg ๐ Quick fire response thanks to electronically controlled contact arm; Electronically controlled contact arm enables 30% quicker fire response compared with that of model ST420D ๐ Compact design; Thanks to use of electronically controlled anti-dry fire mechanism,the stroke length of contact arm has been reduced ๐ Contact arm mechanism enables "continuous nailing" and "drag nailing" ๐ Toolless depth adjustment for precise flush and countersink finish ๐ Built-in LED light ๐ Low reaction force mechanism enables easier nailing without pressing down the tool body ๐ Spring-loaded driving mechanism allows for a compact tool with light weight ๐ Trigger-lock button minimizes accidental start up ๐ Remaining staples can be checked through the sight window ๐ Extreme Protection Technology (XPT) is engineered to provide improved dust and water resistance for operation in harsh conditions ๐ Battery protection circuit protects against overloading, over-discharging and over-heating