** Leitech COMBI Gages ** Measure Thread Size & Depth

 A threaded or cylindrical hole that does not break through to the opposite side of the part. Measuring depth is critical in these applications to prevent assembly failures from "short threads" or fasteners bottoming out before achieving full engagement.

 The actual usable length of thread that can accept a fastener, measured from the first full thread ridge. Unlike nominal depth (which measures to the bottom of the hole), functional depth accounts for thread lead-in and ensures the fastener has sufficient engagement to meet torque and load requirements.

 Dual-purpose measurement used for non-threaded features such as reamed bores, drilled holes, or precision-bored features. System Leitech provides the same one-operation efficiency for these cylindrical features as it does for threaded holes.

  The depth as measured specifically from the crest of the first full of thread profile. Leitech gages use a telescoping sleeve that rests on the part face to provide a direct reading of this critical dimension while the GO member simultaneously verifies pitch diameter size.

 Sustainable manufacturing isn't just about replacing parts—it’s about needing fewer tools. By utilizing a direct-reading telescoping scale, Leitech allows you to verify every depth specification in a single part without switching gages. Fewer gages mean lower calibration costs, less storage, and zero redundant waste. 

 The precise distance from the front face of the thread member to the zero-point on the measuring sleeve. This value is calculated using pitch-specific formulas to ensure the gage conforms to FED-STD-H28 and international thread standards.

 The inconsistency in measurement results caused by different individuals applying varying amounts of inspection force or torque. The DMG-COMBI eliminates this variable through motorized, standardized measurement force.

 The first complete thread form that meets full thread profile specifications. Leitech calibration methodology references this point (not the part face) to ensure accurate functional depth measurement that correlates with actual fastener engagement.

 Verification of threaded holes, including those in raised features, common in castings and machined parts. These often present access challenges that make traditional two-tool inspection methods difficult.

 The minimum depth of usable thread required for a fastener to achieve specified torque and load-bearing capacity. Leitech gages ensure this critical dimension is met in every inspection.

 Unlike fixed-depth gages or notches that only verify a single, pre-set dimension, a single Leitech COMBI gage measures variable thread depths for a specific thread size. This capability allows one tool to replace an entire set of mulitple fixed-step gages, drastically reducing your total gage inventory, simplifying calibration overhead, and lowering the total cost of ownership across various precision parts. 

 Leitech gages are engineered for a lifetime of service through our patented taperlock design. By utilizing Member Removal Sleeves, worn thread or cylindrical inserts are easily extracted and replaced while the precision handle remains in service. This process allows you to renew the tool indefinitely, minimizing physical waste and maximizing your long-term investment in precision hardware.

 Unlike "Go/No-Go" gages that only provide a binary pass/fail result, Leitech COMBI gages deliver a direct numerical reading of the thread depth. This Industry 4.0 data allows Quality Manufacturing Managers and Machinists to make precise CNC tool-offset adjustments based on traceable data rather than "eyeballed" estimates. 

 A precision-ground instrument used to set the exact "Calibration Length (X)" of a Leitech COMBI gage. It ensures that the telescoping sleeve is perfectly synchronized with the thread member, providing the metrological certainty required for ISO audits and FED-STD-H28 compliance. 

 A specialized extraction tool used to quickly and safely remove worn thread or cylindrical inserts from the Leitech handle. By enabling the replacement of only the member rather than the entire instrument, the sleeve is the key driver of Tool Longevity and Sustainability, transforming your gage into a lifetime investment for the Gage Lab. 

  The verification that a threaded feature will accept its mating part. A Leitech "GO" member verifies the functional size while the integrated sleeve simultaneously measures depth—combining two critical quality checks into one fluid motion. 

  A core benefit of the Leitech system where a single variable-depth COMBI gage replaces a set of numerous traditional fixed-step gages. This significantly reduces Gage Lab overhead, calibration costs, and the risk of "wrong-tool" errors in high-volume production. 

  The elimination of operator subjectivity (such as "counting turns") in thread inspection. Leitech provides a repeatable, data-driven process that ensures every blind hole or tapped feature meets the exact specifications required by Design and Process Engineers.