Profile: DMT-Drillmaster Tool, LLC manufactures workholding fixtures, special machines and leak test systems. We offer tombstone fixtures and window fixtures. Our tombstone fixture features part-adapter plate and two-sided tombstone holds. We produce cylinder bore & gage machine and crank bore & gage machine. We deal with pressure decay leak test system, which includes top clamp design, hydraulic & pneumatic clamping and custom molded seals.