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Kennametal KenTIP FS vs Allied Machine Opening Drill
Kennametal KenTIP FS and Allied Machine Opening Drill are documented holemaking systems with different product architecture and application priorities. KenTIP FS is Kennametal's replaceable-tip modular drilling system in which a carbide insert covers the full drill point and connects to a reusable body. Opening Drill is an Allied Machine adjustable indexable system for enlarging existing holes without a sequence of boring passes.
Side-by-side comparison
| Category | Kennametal KenTIP FS | Allied Machine Opening Drill |
|---|---|---|
| System architecture | System architecture: reusable drill body plus full-front carbide insert, with coupling protection and compatibility controlled by diameter and seat size. | Diameter range: 50.80-142.75 mm (2.000-5.620 in). |
| Documented application focus | Modular drilling where replaceable solid-carbide cutting geometry is desired with a reusable body. | Enlarging existing holes where eliminating multiple boring passes can reduce cycle time. |
| Technical selection detail | Official body records distinguish SS straight shanks and SCF flanged shanks with flat, depth ratios, diameter ranges, and coolant features. | Four body series divide the diameter range from OP1 through OP4. |
| Primary documented constraint | Body diameter range, insert seat, geometry, and grade must match; family membership alone does not establish compatibility. | Opening Drill enlarges a pre-existing hole and is not a substitute for drilling from solid. |
| Manufacturer-guided selection | Capture body and insert material numbers, catalog IDs, body depth, shank style, seat, insert geometry, grade, diameter, and coolant condition as one assembly. | Use Opening Drill when a prepared hole already exists and adjustable large-diameter enlargement is more efficient than repeated boring passes. |
Best fit by application
Kennametal KenTIP FS
- Modular drilling where replaceable solid-carbide cutting geometry is desired with a reusable body.
- Capture body and insert material numbers, catalog IDs, body depth, shank style, seat, insert geometry, grade, diameter, and coolant condition as one assembly.
Allied Machine Opening Drill
- Enlarging existing holes where eliminating multiple boring passes can reduce cycle time.
- Use Opening Drill when a prepared hole already exists and adjustable large-diameter enlargement is more efficient than repeated boring passes.
Selection notes
Use KenTIP FS when its documented application focus and technical configuration match the operation more closely; use Opening Drill 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
- KenTIP FS: Body diameter range, insert seat, geometry, and grade must match; family membership alone does not establish compatibility.
- Opening Drill: Opening Drill enlarges a pre-existing hole and is not a substitute for drilling from solid.
- 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.