Carbide Drills List of Drill Geometry by Type, Features by Specifications
List of Drill Geometry by Type
| Model Number | Diameter Tolerance | Torsion Angle | Tip Angle | Thinning | Relief Surface | Cutting Blade |
|---|---|---|---|---|---|---|
| TSC-DL-ESDB / TSC-DL-ESDR | h7 | Composite Spiral | 145 | X Shape | Three-Rake | Wave |
| TAC-BNESDBA | js6 | Standard | 140 | R Shape | Three-Rake | Wave |
| TAC-HBNESDR | js6 | Standard | 140 | R Shape | Three-Rake | Wave |
| TAC-ESD3FB / TAC-ESD3FRA | h6 | Standard | 140 | Special S-type | Three-Rake | Wave |
| TAC-WMESDRA | h6 | Standard | 140 | R Shape | Three-Rake | Wave |
| TAC-RFESDB / TAC-RFESDRA | h6 | Standard | 140 | R Shape | Three-Rake | Wave |
| TAC-CR-RFESDBA / TAC-CR-RFESDRA | h7 | Standard | 140 | R Shape | Three-Rake | Wave |
| TAC-CR-RFSDB / TAC-CR-RFSDR | h7 | Standard | 140 | R Shape | Three-Rake | Wave |
| TAC-RESDBA / TAC-RESDRA | m7 | Standard | 140 | R Shape | Conical | Wave |
| TAC-HRESDB / TAC-HRESDR | m7 | Standard | 140 | R Shape | Conical | Wave |
| TAC-RSDB / TAC-RSDR | m7 | Standard | 140 | R Shape | Conical | Wave |
| TAC-MS-ESDR | h7 | Standard | 140 | None | Three-Rake | Straight Line |
| TAC-ESDB / TAC-ESDR | h8 | Standard | 140 | None | Three-Rake | Straight Line |
| TAC-ESDBA / TAC-ESDRA | h8 | Standard | 140 | X Shape | Three-Rake | Straight Line |
| TAC-HESDB / TAC-HESDR | h8 | Standard | 140 | X Shape | Three-Rake | Straight Line |
| TAC-SDB / TAC-SDS | h7 | Standard | 118 | S-Shape | Three-Rake | Straight Line |
| C-SDB / C-SDS | h7 | Standard | 118 | S-Shape | Three-Rake | Straight Line |
| TSC-CR-XESDR | h7 | Weak | 140 | X Shape | Three-Rake | Straight Line |
| TSC-XESDR / TSC-XESDM | h8 | Weak | 140 | X Shape | Three-Rake | Straight Line |
| TSC-XSDR / TSC-XSDM | h8 | Weak | 140 | X Shape | Three-Rake | Straight Line |
| TSC-MS-XESDB / TSC-MS-XESDR | m7 | Standard | 140 | X Shape | Three-Rake | Straight Line |
| TAC-DL-SESDR | h7 | Composite Spiral | 125 | X Shape | Three-Rake | Wave |
| DLC-DL-ALESDR | h7 | Composite Spiral | 120 | X Shape | Three-Rake | Wave |
| DLC-ALESDR | h8 | Strong | 130 | X Shape | Three-Rake | Straight Line |
| SEC-PLSDB | h8 | Standard | - | - | - | - |
| TAC-FCESD3R | m7 | Standard | 130 | R Shape | Conical | Wave |
| TAC-SDXL / TAC-HSDXL | h8 | Strong | 130 | S Shape (for Deep Hole) | Conical | Straight Line |
| TAC-ESD2LB | h8 | Standard | 140 | X Shape | Three-Rake | Straight Line |
| TSC-XESD2LB | h8 | Weak | 140 | X Shape | Three-Rake | Straight Line |
| TAC-SC-SDR | h8 | Standard | 140 | X Shape | Three-Rake | Straight Line |
| TAC-SF-SDR | h8 | Standard | 140 | X Shape | Three-Rake | Straight Line |
| DLC-SC-SDR / DLC-SF-SDR | h8 | Strong | 130 | X Shape | Three-Rake | Straight Line |
Features By Drill Specifications
■ Diameter Tolerance
★ Advantages of Plus Tolerance
・ Drills can be used at a hole tolerance of about H9 without the need for a reamer.
・ When drilling pilot holes for deep holes, setting a hole diameter with a plus tolerance allows highly precise guide holes to be drilled.
・ Tapping costs can be reduced and the durability of taps can be improved by setting a hole diameter with a plus tolerance when drilling pilot holes for taps.
・ Hole diameter minus values following regrinding can be reduced and limited.
■ Torsion Angle
■ Tip Angle
■ Thinning
■ Relief Surface Shape
■ Cutting Blade Shape
