step drills
12 Per Piece
A step drill is used on metal at a slower speed. The science of drill bits is an exact one, with the right drill bit making all the difference between good and bad work. Only a small amount of pressure is needed with an appropriate and sharp bit.
crawler drill machine
1,300,000 Per Bag
Parameters Specification Hole size range : 75 mm-120.6 mm/(3″-4.75 inch) Max Hole Depth : 27.5 m(90 feet) Rotary Head Speed : 80 rpm Grandebility : 3.0 km/hr Ground clearance : 260 mm Bare Drill weight : 3200 kg Operating weight : 3500 kg
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pillar drills
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pillar drills, Drilling Machines, radial drills, Tapping Machines