Home / Knowledge / Guhring RT 100 U vs Allied Machine Opening Drill
Guhring RT 100 U vs Allied Machine Opening Drill
Guhring RT 100 U and Allied Machine Opening Drill are documented holemaking systems with different product architecture and application priorities. Guhring RT 100 U is a coolant-through carbide drill platform with distinct depth and shank series. Opening Drill is an Allied Machine adjustable indexable system for enlarging existing holes without a sequence of boring passes.
Side-by-side comparison
| Category | Guhring RT 100 U | Allied Machine Opening Drill |
|---|---|---|
| System architecture | Series 5610 is a 3xD nano-FIREX, 140-degree RT 100 U with coolant and HE shank. | Diameter range: 50.80-142.75 mm (2.000-5.620 in). |
| Documented application focus | Production drilling in the material groups available for the exact RT 100 U item. | Enlarging existing holes where eliminating multiple boring passes can reduce cycle time. |
| Technical selection detail | Series 5511 is the 5xD nano-FIREX, 140-degree HA-shank branch. | Four body series divide the diameter range from OP1 through OP4. |
| Primary documented constraint | Depth, shank, coating, margin design, diameter, and EDP identity control compatibility. | Opening Drill enlarges a pre-existing hole and is not a substitute for drilling from solid. |
| Manufacturer-guided selection | Store series, code, EDP, diameter, L/D, shank, coating, point, margin form, coolant, and current cutting-data source. | 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
Guhring RT 100 U
- Production drilling in the material groups available for the exact RT 100 U item.
- Store series, code, EDP, diameter, L/D, shank, coating, point, margin form, coolant, and current cutting-data source.
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 RT 100 U 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
- RT 100 U: Depth, shank, coating, margin design, diameter, and EDP identity control 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.