TRI-LOK™ Super Duty Blade Bullet Cutterhead

Ideal for consolidated formations, cemented gravel and concrete. Hard surfacing increases cutterhead life in hard, abrasive formations. Designed to accept a wooden plug or brass guide for use with the overshot wireline system

Available in 3-1/4", 4-1/4", 6-5/8", 8-1/4", 10-1/4" and 12-1/4" (83, 108, 168, 210, 260 and 311mm) I.D.