Stanley Infrastructure SK58310 Underwater Hydraulic Sinker Drill

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 Couplers: No Whips: Yes Air Port: 1/2” NPT