Hand drill tools - Hand Drill 

Page / - last modified by TerraIndex TerraIndex on 2021/09/30 15:20 

Hand Drill 
last modified by TerraIndex TerraIndex
on 2021/09/30 15:20

Table of Contents

The hand drill tools for shallow soil investigation are much applied in the research on soil contamination. When you need to drill until you reach the groundwater level you can use an Edelman-, Riverside-, or gravel drill, shown below. For cohesive soils these drills can also be used to drill further than the groundwater table. The Riverside-, and gravel drill will give a more disturbed sample than the Edelman drill. If less smearing and disturbing is required, the sample should be taken by several  drillings decreasing in diameter or by the use of a tube while drilling. Sampling never exceeds 10 cm to 15 cm in height.  
Moreover the above mentioned drills are also used under de groundwater level after using mechanical drills then sampling continues with these hand drills.
References
•	NPR 5741:2014
Hand Drill

Conditions  for the use of the hand drill
Parameter	Present	
Contaminated soil	Yes	
Heterogenic contamination	No	
Debris	No	
Cohesive soils	No	
Drilling under groundwatertable	No	
Contents
•	References
•	Hand Drill