Stanley’s SK58310 Sinker Drill is a heavy duty rock drill designed for drilling underwater in concrete, rock and masonry. The feathering on/off valve makes starting the bit relatively easy. The SK58 uses industry standard drill steel and can drill up to a 3” diameter hole up to 20 feet deep. Air is required to clear holes of debris.

Specifications:

Drill Capacity: 3” Diameter Hole, up to 20’ deep
Steel Type: 1” x 4 1/4” Hex Shank
Circuit Type: Open Center
Flow Range: 7-9 GPM / 26-34 LPM
Optimum Flow: 8 GPM / 30 LPM
Working Pressure: 1500-2000 PSI / 105-140 PSI
Full Relief Setting: 2250 PSI / 155 BAR
Rotation Speed: 0-300 RPM
Weight (less bit): 70 LBS / 31.7 KG
Length: 26” / 66 CM
Width (at handles): 18” / 46 CM
Hydraulic Ports: -8 SAE O-Ring
Comes With Couplers: No
Comes With Whips: Yes
Air Port: 1/2” NPT