Occupation: Earth Drillers, Except Oil and Gas
Task: Regulate air pressure, rotary speed, and downward pressure, according to the type of rock or concrete being drilled.

Scale: Frequency of Task (Categories 1-7)
Category: 1
Value: 0 (N=76)
Source: Incumbent, 06/2007

Scale: Frequency of Task (Categories 1-7)
Category: 2
Value: 0 (N=76)
Source: Incumbent, 06/2007

Scale: Frequency of Task (Categories 1-7)
Category: 3
Value: 3.75 (N=76)
Source: Incumbent, 06/2007

Scale: Frequency of Task (Categories 1-7)
Category: 4
Value: 2.27 (N=76)
Source: Incumbent, 06/2007

Scale: Frequency of Task (Categories 1-7)
Category: 5
Value: 65.03 (N=76)
Source: Incumbent, 06/2007

Scale: Frequency of Task (Categories 1-7)
Category: 6
Value: 5.95 (N=76)
Source: Incumbent, 06/2007

Scale: Frequency of Task (Categories 1-7)
Category: 7
Value: 23.01 (N=76)
Source: Incumbent, 06/2007

Scale: Importance
Value: 4.34 (N=77)
Source: Incumbent, 06/2007

Scale: Relevance of Task
Value: 94.59 (N=84)
Source: Incumbent, 06/2007