Home / Knowledge / Kennametal KSEM vs Seco Tools Crownloc
Kennametal KSEM vs Seco Tools Crownloc
Kennametal KSEM and Seco Tools Crownloc are documented holemaking systems with different product architecture and application priorities. KSEM is Kennametal's modular drilling system built around reusable drill bodies and replaceable carbide center inserts. Seco Crownloc is an exchangeable-tip drilling family that combines reusable drill bodies with replaceable crowns.
Side-by-side comparison
| Category | Kennametal KSEM | Seco Tools Crownloc |
|---|---|---|
| System architecture | System architecture: machine-side drill body plus workpiece-side KSEM center insert, with compatibility controlled by diameter and insert seat size. | Seco describes Crownloc with an interlocking interface, guided margins, self-centering geometry, and coolant delivery through the crown. |
| Documented application focus | Modular production drilling where a reusable body and replaceable carbide cutting point are preferred. | Production drilling where replaceable crowns reduce regrinding and drill-body replacement. |
| Technical selection detail | Official records identify bodies by depth ratio and shank style, including WN, WD, SS, SSF, and structural-steel SFP variants across the available range. | Crownloc Plus is a newer and distinct branch with revised geometry, coating, and locking-interface features. |
| Primary documented constraint | A body and insert with similar nominal diameters are not necessarily compatible; insert seat size and current compatibility data control the assembly. | Crownloc and Crownloc Plus should not be assumed cross-compatible. |
| Manufacturer-guided selection | Capture both Kennametal material numbers and ISO/ANSI catalog IDs for the body and insert, plus depth ratio, shank, seat size, geometry, grade, and diameter. | Keep body and crown identifiers linked with the generation, diameter, L/D, work material, coolant requirement, and current Seco compatibility evidence. |
Best fit by application
Kennametal KSEM
- Modular production drilling where a reusable body and replaceable carbide cutting point are preferred.
- Capture both Kennametal material numbers and ISO/ANSI catalog IDs for the body and insert, plus depth ratio, shank, seat size, geometry, grade, and diameter.
Seco Tools Crownloc
- Production drilling where replaceable crowns reduce regrinding and drill-body replacement.
- Keep body and crown identifiers linked with the generation, diameter, L/D, work material, coolant requirement, and current Seco compatibility evidence.
Selection notes
Use KSEM when its documented application focus and technical configuration match the operation more closely; use Crownloc when its documented architecture and constraints provide the better fit.
Compare complete configured assemblies and current manufacturer data rather than treating either family name as one universal item.
Variables to validate
- KSEM: A body and insert with similar nominal diameters are not necessarily compatible; insert seat size and current compatibility data control the assembly.
- Crownloc: Crownloc and Crownloc Plus should not be assumed cross-compatible.
- Normalize diameter or cutter size, reach, interface, work material, machine conditions, coolant, and acceptance criteria before comparing performance or cost.
Official product references
We work to keep this information reliable, but specifications and availability can change. Verify critical details with the manufacturer through the official resources above.