Description Unit – Suitable Excavator ton 18~25 Operating Weight [Top Box Type] kg 1,780 Overall Length [Top Box Type] mm 2,877 Chisel Diameter mm 140 Chisel Length mm 1,300 ※ The specifications are subject to change without prior notice for quality improvement. ※ Weight includes mounting bracket to attach to excavator and may vary depending on mounting bracket configuration. Application Standard [●] Option [○] Description – 2-level Hydraulic Auto Stroke System​​ ​ ● Smart Connect ​ ○ Smart Display​ – Auto Stroke / Manual Stroke Switch​​​ – Low Noise Housing Bracket [Top Box]​​ ​ ○ Auto Greasing System Hole​​ ​ ● Auto Greasing Unit​​ ​ ○ Swivel Joint [Top Box]​​ ​ ○ Dust Protecting System [Tunneling Works]​​ ​ ○ Internal Relief Valve​ ○