Hole Opener Hole Opener Product Details: Type Hole Opener Material Hard Alloy Use Well Drilling Drilling parts Processing Type Casting Certification API Machine Type Drilling Tool BZ Fixed Diameters hole openers are made of tough treaded allow steel for maximum strength. Cutter arms are hard faced and welded on body, equipped with removable cutters. Cutters are available in three types. - Type SM is for soft to medium formations. - Type MH for medium to hard formation - Type XH for hard formation. The hope openers have three or six jet tubes with replaceable nozzles, so that jets streams quickly clean the enlarged hole.Hole Size (inch) Number Pilot Hole Fishing Neck (in) Bottom Bore (inch) Overall Weight of Cutters (Min) Length Dia Top Conn. Length (in ch) w/cutters(kg) 17 1/2 3 10-1/2" 18" 9-1/2" 7 5/8 Reg. 7 5/8 Reg 2 1/4 59 550 26" 3 17 1/2" 18" 10" 7 5/8 Reg. 7 5/8 Reg 3 69 900 36" 3 24" 20" 9" 7 5/8 Reg. 7 5/8 Reg 3 75 1000 4 18" 43" 10" 7 5/8 Reg. 7 5/8 Reg 3 100 1540
