Deep-hole drilling with MQL: stabilizing the entire process
A transmission shaft required demanding deep-hole drilling in series production. Recurring unexpected tool failures disrupted the process. The objective was higher average tool output and more reliable manufacturing.
Tool output significantly increased – process reliability sustainably improved.
Recurring tool breakage · limited process reliability
Significantly improved reliability · largely avoided unexpected breakage · more stable production


Adem Çağlar worked on the optimization with colleagues, specialist departments and the tool supplier. The team examined the entire chain: supplier, presetting, storage, clamping, CNC program, production and shift operation.
- Improve tool geometry, microgeometry, coating and regrinding
- Review tool quality, preparation and handling
- Coordinate CNC programs, drilling strategy, chip evacuation and MQL conditions
- Standardize tool changes and process monitoring across shifts
Tool output significantly increased – process reliability sustainably improved.
Personal experience from former employment, not a Caglar İnovasyon customer project. Naming former employers does not imply a current business relationship or official endorsement. No third-party brand logos are added.
Adem Çağlar · Managing DirectorDiscuss your manufacturing process
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