(above) The new Geoprobe® DH100 Automatic Drop Hammer easily mounts on the Geoprobe® 7730DT, 7720DT, and 6620DT models and allows you to use your track machine for environmental and geotechnical projects.
	(both above) A pin on the mounting bracket of the new DH100 Auto Drop Hammer is easily removed so the hammer can swing from the stored position and be deployed over the tool centerline.

• Conforms to ASTM Standards D1586-99
• Operates at up to 60 blows per minute
• Hammer weight: 140 lb. (63.5 kg)
• Throw height can be easily adjusted in seconds
• All moving hammer components enclosed in a protective steel housing for operator safety
• Cannot “dry fire” ... must be on a rod string
• Cannot fire in the horizontal position
• Easily swings over hollow stem augers or a driven casing in seconds
• Accurate, consistent results with no human error
• Easy on / Easy off design

(above) Ryan Kejr, Project Engineer, uses an inhouse training session to explain setting the drop height of the DH100 Auto Drop Hammer.