The Authority in Precision Thread Depth Gaging | Leitech US
Leitech COMBI Thread Depth Gages Measure Thread Size and Depth
One Gage ... Two Measurements ... Zero Guessing
Leitech US
1134 N. 9th St.
Suite 280
Milwaukee, WI 53233
Phone: 414-333-6310
leitech.com
Leitech COMBI Gages — Precision Thread Depth Inspection
The Hi-Resolution COMBI — Precision in Tight Spaces
Built for aerospace, medical, and defense components where depth tolerance is a compliance requirement, not just a quality preference. 0.1mm / 0.005" resolution with a unique locking device that freezes the depth reading — so you capture the value in a confined space and read it once the tool is removed. Calibrated to FED-STD-H28. NIST-traceable from day one. When "close enough" means a failed audit, this is the instrument.
The Digi-COMBI - Digital Gaging with Wireless SPC
0.01mm / 0.0005" LCD readout. RS232 and wireless output. Direct integration into your SPC system — no manual entry, no transcription errors, no paper logs. Eliminates parallax error and operator subjectivity. Toggles between metric and inch instantly. Built for Industry 4.0 shops that need a complete digital audit trail for every threaded hole. This is thread depth inspection for the modern quality lab.
The DMG — Digital Motorized Gage Powerdriven Thread Depth Gaging
Standardized motorized torque. Every check. Every shift. Every operator. No variability. Built for high-volume production lines where manual gaging creates fatigue, inconsistency, and GR&R problems. The DMG combines the speed of power-driven thread gaging with the precision of a calibrated Leitech instrument. Size and depth. Simultaneously. At production speed.
The Standard COMBI — The Production Workhorse
The instrument that started it all. 0.5mm / 0.025" resolution. Spring-loaded telescoping sleeve. Direct numerical depth reading the moment the GO member enters the hole. Replaces entire sets of fixed-depth gages. One tool covers variable depths across multiple parts and multiple thread sizes. No turn-counting. No depth mics. No estimation. This is the gage that changed how manufacturers think about thread depth inspection.
The best demo is in your hands. Ask us about a free demo gage in your exact thread size — we'll send it to you. No obligation.
Standard COMBI: The Production Workhorse
DMG COMBI: The Ultimate in Consistency
Standard COMBI: The Production Workhorse
- The Problem: Traditional gaging requires multiple tools or unreliable turn-counting to estimate depth. Fixed-depth gages multiply costs and clutter the gage lab.
- The Leitech Solution: One Standard COMBI measures any depth within its range, delivering the actual numerical value needed to adjust CNC offsets — instantly.
- Impact: Repla
- The Problem: Traditional gaging requires multiple tools or unreliable turn-counting to estimate depth. Fixed-depth gages multiply costs and clutter the gage lab.
- The Leitech Solution: One Standard COMBI measures any depth within its range, delivering the actual numerical value needed to adjust CNC offsets — instantly.
- Impact: Replaces entire sets of fixed-depth gages. One tool covers variable depths across multiple parts. 0.5mm / 0.025" resolution. Built for high-volume production floors.
Hi-Resolution COMBI: Precision in Tight Spaces
DMG COMBI: The Ultimate in Consistency
Standard COMBI: The Production Workhorse
- The Problem: Tighter tolerances and confined spaces force operators to guess depth readings or remove the part entirely for measurement.
- The Leitech Solution: 0.1mm / 0.005" resolution with a unique locking device that freezes the depth reading — so you capture the value in a hard-to-reach area and read it once the tool is removed.
- Impa
- The Problem: Tighter tolerances and confined spaces force operators to guess depth readings or remove the part entirely for measurement.
- The Leitech Solution: 0.1mm / 0.005" resolution with a unique locking device that freezes the depth reading — so you capture the value in a hard-to-reach area and read it once the tool is removed.
- Impact: The go-to instrument for aerospace, medical, and defense components where depth variance is a compliance issue, not just a quality issue.
Digi-COMBI: Instant Clarity and Digital Documentation
DMG COMBI: The Ultimate in Consistency
DMG COMBI: The Ultimate in Consistency
- The Problem: Manual data entry slows the shop floor and introduces transcription errors in the gage lab. Paper logs don't satisfy modern quality audits.
- The Leitech Solution: Ultra-precise 0.01mm / 0.0005" LCD readout with RS232 and wireless output for instant, error-free data collection directly into your SPC system.
- Impact: Elimin
- The Problem: Manual data entry slows the shop floor and introduces transcription errors in the gage lab. Paper logs don't satisfy modern quality audits.
- The Leitech Solution: Ultra-precise 0.01mm / 0.0005" LCD readout with RS232 and wireless output for instant, error-free data collection directly into your SPC system.
- Impact: Eliminates parallax error, manual entry, and operator subjectivity. Built for Industry 4.0 shops that need a complete digital audit trail for every threaded hole.
DMG COMBI: The Ultimate in Consistency
DMG COMBI: The Ultimate in Consistency
DMG COMBI: The Ultimate in Consistency
- The Problem: Operator feel and torque variability produce inconsistent readings across shifts and automated cells. Human fatigue compounds the problem in high-volume environments.
- The Leitech Solution: Standardized motorized torque ensures identical entry force for every single measurement — shift after shift, operator after operator
- The Problem: Operator feel and torque variability produce inconsistent readings across shifts and automated cells. Human fatigue compounds the problem in high-volume environments.
- The Leitech Solution: Standardized motorized torque ensures identical entry force for every single measurement — shift after shift, operator after operator.
- Impact: Engineered for maximum throughput in automated environments. Combines the speed of power-driven gaging with the precision of a calibrated Leitech instrument.
The Variable Depth Advantage
The Old Method
This image shows five gages for five depths of the same thread size. But it could be two. It could be twenty-seven. Traditional fixed-depth gaging means a separate gage for every depth requirement — more parts, more calibrations, more cost.
The Leitech Method
One Leitech COMBI checks every depth of that thread size — directly, numerically, traceably. Same thread size. Variable depths. One tool. Done.
The Result
A leaner gage inventory. Lower calibration overhead. Zero redundant tooling waste. This is what Inventory Efficiency looks like in a modern gage lab.
The Guide to Thread Depth Inspection
In precision manufacturing, a thread that is "close enough" is a failure.
Here are the questions every Quality Engineer, Machinist, and Metrologist needs answered.
Thousands of Manufacturers One Standard
Over 35 years serving North American precision manufacturers — including suppliers to Caterpillar, John Deere, Ford, General Motors, Tesla, SpaceX, Toyota, Honda, Hyundai, Nissan, BMW, Aisin, Denso, Magna, ZF, Linamar, Nemak, GKN, Borg Warner, Dana Corporation, Bendix, Getrag, CNH, Navistar, PACCAR, Cummins, Briggs & Stratton, Kohler Engines, Kawasaki, Ryobi, Harley-Davidson, Mercury Marine, Hydro-Gear, Crown Equipment, Collins Aerospace, Lockheed Martin, Northrop Grumman, Raytheon, BAE Systems, Bell Flight, Pratt & Whitney, GE Aerospace, Rolls-Royce, General Dynamics, Leonardo DRS, Lisi Aerospace, Hartzell Propeller, Sikorsky, Safran, SKF, Hitachi Astemo, Parker Hannifin, Eaton, Danfoss, Honeywell, Emerson Electric, Robert Bosch, Danaher, ITT, Moog, Jabil, Pace Industries, Zimmer Biomet, Stryker, DePuy Synthes, Medtronic, Arthrex, Microport Orthopedics, Autocam Medical, Orchid Orthopedics, Viant Medical — and thousands of the Tier 1 suppliers and precision machine shops across the US, Canada, and Mexico that make their parts.
Who uses Leitech? The better question is: who doesn't.
Stop Guessing. Start Measuring.
From the Standard COMBI workhorse to the Digital Motorized DMG — there is a Leitech solution for every thread depth inspection challenge on your shop floor, in your gage lab, or on your production line. Authorized Master Distributor and Technical Support for the USA, Canada, Mexico and Puerto Rico. Since 1989.