Star Swiss Type Toolholders (PDF)
Star Swiss Type Toolholders — Ver.2026.09, 29 pages, PDF · Free download, no registration.
| Machine series | SR-10J, SR-20J, SR-20R, SR-32J, SR-38, SB-12R, SB-16R, SB-20R, SV-12, SV-20R, SV-32J, SV-38R, SW-12R, SW-20, ECAS-12, ECAS-20, ST-20, RNB16 |
|---|---|
| Holder types | Backworking Drilling Holder, Axial Live Tool Holder, Straight-Shank Live Tool Holder, Adjustable-Angle Axial Live Tool Holder, Whirling Tool Holder, Turning Tool Holder, Backworking Radial Milling Holder, Deep-Hole Drilling Holder, Backworking Side-Lock Tool Holder, 3x-Speed Radial Milling Live Tool Holder, Internal Whirling Tool Holder, Polygon Milling Tool Holder, Drilling Holder, Backworking Tapping Holder, Backworking Turning Tool Holder, Backworking Dual-Hole Drilling Holder, Drilling Spindle, Backworking Live Tool Holder, Backworking Triple-Spindle Live Tool Holder, Backworking Slitting Saw Holder |
| Gear ratios | 1:0.55, 1:0.6, 1:1, 1:3 |
| Maximum speed | 4,000–18,000 rpm |
| Collets | ER11, ER16, ER20, ER25 |
| Catalogue | Star Swiss Type Toolholders — Ver.2026.09, 29 pages, PDF |
| Star part no. | Mongtec model | Holder type | Compatible machines |
|---|---|---|---|
| 0E1-51 | SR20JC-30330 | Backworking Triple-Spindle Live Tool Holder | SB16R/SB20R/SR20J |
| 0R1-23 | SR20RIV-31011 | Backworking Drilling Holder | SB12R/SB20R/SR20RIV/SV20R/SW12RII |
| 0R1-51 | SR20RIV-30210 | Backworking Radial Milling Holder | SR-20RIV, SR32JII, SR-38(Type A/B), SB12R/20R TYPE E/N, SW-12RII, SW-20, SV20R |
| 0R1-61 | SR20RIV-30310 | Straight-Shank Live Tool Holder | SB12R/SB20R/SR20RIV/SR32JII(TYPE A/B)/SR38(TYPE A/B)/SV20R/SW12RII/SW20 |
| 101-11 | SR20RIV-51311 | Backworking Side-Lock Tool Holder | SR20RIV/SR32JII(TYPE B)/SR38(TYPE A/B)/SV20R |
| 101-68 | SR38-20310 | Straight-Shank Live Tool Holder | SR38 |
| 221-10 | SV32-02011 | Deep-Hole Drilling Holder | ST-20/ECAS-20T, SV-20R, SV-32JII |
| 331-50 | SR20R-20310 | Straight-Shank Live Tool Holder | ECAS12/ECAS20/SB12R/SB20R/SR20J/SR20RIII/SR20RIV/SR32J/SR32JII(TYPE A/B)/SV12/SV20/SV32JII/SV32/SV38R/SW20 |
| 541-21 | SR20R-51410 | Backworking Drilling Holder | ECAS12/20, SR-20RII, SR-20RIII, SR20J/JN, SR20RIV, SR32J/JN, SR10J, SR16R/20R TYPE C, SB12R/20R TYPE E/N, SB12II/16II, SB20 TYPE E, SW12RII, SV20R |
| 541-32 | SR20R-31610 | Backworking Tapping Holder | — |
| 541-51 | SR20R-20120 | Axial Live Tool Holder | SB12R/SB20R/SR20J/SR20RIII/SR20RIV |
| 541-61 | SR20R-30310-1 | Backworking Live Tool Holder | ECAS12/ECAS20/SB12R/SB20R/SR10J/SR20J/SR20RIII/SR20RIV/SR32J/SR32JII(TYPE A)/SW12RII |
| 571-55 | SR20R-20310-2 | Straight-Shank Live Tool Holder | ECAS20/ECAS2/SR20RIII/SR20RIV/SR20J/SR32J |
| 571-61 | SR20R-30310 | Straight-Shank Live Tool Holder | ECAS12/ECAS20/SB12R/SB20R/SR20J/SR20RIII/SR20RIV/SR32J/SR32JII(TYPE A)/SW12RII |
| 661-51 | SR20R-20130 | Axial Live Tool Holder | SB12R/SB20R/SR20J/SR20RIII/SR20RIV |
| 661-51 | SR20R-20130-1 | Axial Live Tool Holder | SB12R/SB20R/SR20J/SR20RIII/SR20RIV |
| 671-51 | SR32J-20130 | Axial Live Tool Holder | SR32J/SR32JII(TYPE A/B) |
| 671-51 | SR32J-20130-1 | Axial Live Tool Holder | SR32J/SR32JII(TYPE A/B) |
| 671-59 | SR32J-21130 | Axial Live Tool Holder | SR32J/SR32JN |
| 671-75 | SR20R-51311 | Backworking Side-Lock Tool Holder | SR32J/SR32JII(TYPE A) |
| 671-91 | SR20RIV-10810 | Polygon Milling Tool Holder | SR32J/SR32JII(TYPE A/B) |
| 681-72 | SR20R-25510 | Internal Whirling Tool Holder | SR20J/SR20RIII/SR20RIV/SR32J/SR32JII(TYPE A/B)/SW20 |
| 691-24 | SR20R-31010 | Backworking Drilling Holder | ECAS12/20, SR-20RII, SR-20RIII, SR20J/JN, SR20RIV, SR32J/JN, SR10J, SB12R/20R TYPE E/N, SW12RII |
| 691-25 | SR10J-31010 | Backworking Drilling Holder | SR10J |
| 691-25 | SR10J-31010 | Backworking Drilling Holder | SR10J |
| 691-65/691-66 | SR10J-30410 | Backworking Slitting Saw Holder | ECAS12/ECAS20/SB12R/SB20R/SR10J/SR20J/SR20RIII/SR32J/SR32JII(TYPE A)/SV20R/SW12RII |
| OM1-55 | SR20R-21130 | Axial Live Tool Holder | SB16R/SB20R TYPE C/SB20R TYPE G |
Each row lists every Mongtec holder the catalogue gives for that machine series. The full table below shows the exact machine versions.
| Mongtec model | Holder type | Star part no. | Gear ratio | Max. speed | Collet | Compatible machines |
|---|---|---|---|---|---|---|
| SR20R-23310 | 3x-Speed Radial Milling Live Tool Holder | — | 1:3 | 18,000 rpm | ER11 | ECAS12/ECAS20/SB12R/SB20R/SR20J/SR20RIII/SR20RIV/SR32J/SR32JII(TYPE A/B)/SV12/SV20/SV32JII/SV32/SV38R/SW20 |
| SR20R-25510 | Internal Whirling Tool Holder | 681-72 | 1:1 | 4,000 rpm | — | SR20J/SR20RIII/SR20RIV/SR32J/SR32JII(TYPE A/B)/SW20 |
| SR20R-20120 | Axial Live Tool Holder | 541-51 | 1:1 | 6,000 rpm | ER16 | SB12R/SB20R/SR20J/SR20RIII/SR20RIV |
| SR20R-20130 | Axial Live Tool Holder | 661-51 | 1:1 | 6,000 rpm | ER16 | SB12R/SB20R/SR20J/SR20RIII/SR20RIV |
| SR20R-20130-1 | Axial Live Tool Holder | 661-51 | 1:1 | 6,000 rpm | ER16 | SB12R/SB20R/SR20J/SR20RIII/SR20RIV |
| SR20R-21130 | Axial Live Tool Holder | OM1-55 | 1:1 | 6,000 rpm | ER11/ER16 | SB16R/SB20R TYPE C/SB20R TYPE G |
| SR32J-20130 | Axial Live Tool Holder | 671-51 | 1:1 | 6,000 rpm | ER16 | SR32J/SR32JII(TYPE A/B) |
| SR32J-20130-1 | Axial Live Tool Holder | 671-51 | 1:1 | 6,000 rpm | ER16 | SR32J/SR32JII(TYPE A/B) |
| SR32J-21130 | Axial Live Tool Holder | 671-59 | 1:1 | 6,000 rpm | ER11/ER16 | SR32J/SR32JN |
| SR20RIV-10810 | Polygon Milling Tool Holder | 671-91 | 1:0.6 | 6,000 rpm | — | SR32J/SR32JII(TYPE A/B) |
| SR20R-25020 | Adjustable-Angle Axial Live Tool Holder | — | 1:1 | 6,000 rpm | ER16 | SB12R/SB20R/SR20J/SR20RIII/SR20RIV |
| SR20R-25030 | Adjustable-Angle Axial Live Tool Holder | — | 1:1 | 6,000 rpm | ER16 | SB12R/SB20R/SR20J/SR20RIII/SR20RIV |
| SR20R-25120 | Adjustable-Angle Axial Live Tool Holder | — | 1:1 | 6,000 rpm | ER11/ER16 | SB12R/SB20R/SR20J/SR20RIII/SR20RIV |
| SR20R-25130 | Adjustable-Angle Axial Live Tool Holder | — | 1:1 | 6,000 rpm | ER11/ER16 | SR20RIV/SR32J/SR32JII(TYPE A/B) |
| SR20R-20310 | Straight-Shank Live Tool Holder | 331-50 | 1:1 | 6,000 rpm | ER16 | ECAS12/ECAS20/SB12R/SB20R/SR20J/SR20RIII/SR20RIV/SR32J/SR32JII(TYPE A/B)/SV12/SV20/SV32JII/SV32/SV38R/SW20 |
| SR20R-20310-1 | Straight-Shank Live Tool Holder | — | 1:1 | 8,000 rpm | ER20 | SR20J/SR20RIII/SR20RIV/SR32J/SR32JII(TYPE A/B)/SV12/SV20/SV32JII/SV32/SV38R/SW20 |
| SR20R-20310-2 | Straight-Shank Live Tool Holder | 571-55 | 1:1 | 8,000 rpm | ER16 | ECAS20/ECAS2/SR20RIII/SR20RIV/SR20J/SR32J |
| SR38-20310 | Straight-Shank Live Tool Holder | 101-68 | 1:1 | 6,000 rpm | ER20 | SR38 |
| SR20R-20510-1 | Whirling Tool Holder | — | 1:1 | 4,000 rpm | — | ECAS12/20, SR20RII, SR20RIII, SR20J/JN, SR20RIV, SR32J/JN, SW20 |
| SR20R-25510-1 | Whirling Tool Holder | — | 1:1 | 4,000 rpm | — | — |
| SR38-12021 | Deep-Hole Drilling Holder | — | 1:1 | — | ER25 | SR38 |
| SV32-02011 | Deep-Hole Drilling Holder | 221-10 | — | — | — | ST-20/ECAS-20T, SV-20R, SV-32JII |
| SR20R-11030 | Drilling Holder | — | — | — | — | SR20J/SR20RIII/SR20RIV |
| SR20R-51510 | Turning Tool Holder | — | — | — | — | ECAS12/ECAS20/SB12R/SB20R/SR10J/SR20J/SR20RIII/SR20RIV/SR32J/SR32JII(TYPE A)/SW12RII |
| SR20R-51510-1 | Turning Tool Holder | — | — | — | — | ECAS12/ECAS20/SB12R/SB20R/SR10J/SR20J/SR20RIII/SR20RIV/SR32J/SR32JII(TYPE A)/SW12RII |
| SR20R-51510-2 | Turning Tool Holder | — | — | — | — | ECAS12/ECAS20/SB12R/SB20R/SR10J/SR20J/SR20RIII/SR20RIV/SR32J/SR32JII(TYPE A)/SW12RII |
| SR20R-31610 | Backworking Tapping Holder | 541-32 | — | — | ER16 | — |
| SR20RIV-31510 | Backworking Turning Tool Holder | — | — | — | — | SB12R/SB20R/SR20RIV/SR32JII(TYPE A/B)/SR38(TYPE A/B)/SV20R/SW12RII/SW20 |
| SR20R-51311 | Backworking Side-Lock Tool Holder | 671-75 | — | — | — | SR32J/SR32JII(TYPE A) |
| SR20RIV-51311 | Backworking Side-Lock Tool Holder | 101-11 | — | — | — | SR20RIV/SR32JII(TYPE B)/SR38(TYPE A/B)/SV20R |
| SR20J-31030 | Backworking Dual-Hole Drilling Holder | — | — | — | ER16 | SR20J/JN |
| SR10J-31010 | Backworking Drilling Holder | 691-25 | — | — | ER11 | SR10J |
| SR10J-31010-1 | Backworking Drilling Holder | — | — | — | ER11 | SR10J |
| SR20R-31010 | Backworking Drilling Holder | 691-24 | — | — | ER11 | ECAS12/20, SR-20RII, SR-20RIII, SR20J/JN, SR20RIV, SR32J/JN, SR10J, SB12R/20R TYPE E/N, SW12RII |
| SR20R-31010-2 | Backworking Drilling Holder | — | — | — | ER20 | — |
| SR20R-51410 | Backworking Drilling Holder | 541-21 | — | — | ER16 | ECAS12/20, SR-20RII, SR-20RIII, SR20J/JN, SR20RIV, SR32J/JN, SR10J, SR16R/20R TYPE C, SB12R/20R TYPE E/N, SB12II/16II, SB20 TYPE E, SW12RII, SV20R |
| SR20RIV-31011 | Backworking Drilling Holder | 0R1-23 | — | — | ER16 | SB12R/SB20R/SR20RIV/SV20R/SW12RII |
| SR32J-31011 | Backworking Drilling Holder | — | — | — | ER20 | SR20RIV, SR32JII, SR38, SB12R/20R TYPE E/N, SW12RII, SW20, SV20R |
| SR10J-31010 | Backworking Drilling Holder | 691-25 | — | — | ER11 | SR10J |
| RB16-31010 | Drilling Spindle | — | — | — | ER11 | RNB16 |
| SR20R-30310 | Straight-Shank Live Tool Holder | 571-61 | 1:1 | 8,000 rpm | ER16 | ECAS12/ECAS20/SB12R/SB20R/SR20J/SR20RIII/SR20RIV/SR32J/SR32JII(TYPE A)/SW12RII |
| SR20R-30310-1 | Backworking Live Tool Holder | 541-61 | 1:1 | 6,000 rpm | ER11 | ECAS12/ECAS20/SB12R/SB20R/SR10J/SR20J/SR20RIII/SR20RIV/SR32J/SR32JII(TYPE A)/SW12RII |
| SR20RIV-30310 | Straight-Shank Live Tool Holder | 0R1-61 | 1:1 | 8,000 rpm | ER16 | SB12R/SB20R/SR20RIV/SR32JII(TYPE A/B)/SR38(TYPE A/B)/SV20R/SW12RII/SW20 |
| SR20JC-30330 | Backworking Triple-Spindle Live Tool Holder | 0E1-51 | 1:1 | 8,000 rpm | ER11 | SB16R/SB20R/SR20J |
| SR10J-30210 | Backworking Radial Milling Holder | — | 1:0.55 | 6,000 rpm | ER11 | ECAS-12/20, SR-20RII, SR-20III, SR-20J/JN, SR-32J/JN, SR-10J, SB12R/20R TYPE E/N, SW-12RII, SV-20R |
| SR20R-30210 | Backworking Radial Milling Holder | — | 1:1 | 6,000 rpm | ERA11 | SR-20R, SR-20J, SR-32J |
| SR20RIV-30210 | Backworking Radial Milling Holder | 0R1-51 | 1:1 | 6,000 rpm | ER16 | SR-20RIV, SR32JII, SR-38(Type A/B), SB12R/20R TYPE E/N, SW-12RII, SW-20, SV20R |
| SR10J-30410 | Backworking Slitting Saw Holder | 691-65/691-66 | 1:0.55 | 4,000 rpm | — | ECAS12/ECAS20/SB12R/SB20R/SR10J/SR20J/SR20RIII/SR32J/SR32JII(TYPE A)/SV20R/SW12RII |
| SR20RIV-30510 | Whirling Tool Holder | — | 1:1 | 4,000 rpm | — | SR-20RIV |
Source: Star Swiss Type Toolholders, Ver.2026.09. A dash means the catalogue does not state the value; it is confirmed at RFQ. Main dimensions are in the PDF; dimensioned drawings are supplied by email once the enquiry is open.
Yes. Mongtec SR20R-20120 is built to the Star reference 541-51. The cross-reference table above lists every Star part number in the current catalogue; fit in your machine is confirmed by Mongtec engineering at RFQ.
The catalogue lists 31 holders for the SR-20R: SR20R-23310, SR20R-25510, SR20R-20120, SR20R-20130, SR20R-20130-1, SR20R-25020, SR20R-25030, SR20R-25120, SR20R-25130, SR20R-20310, SR20R-20310-1, SR20R-20310-2, SR20R-20510-1, SR20R-11030, SR20R-51510, SR20R-51510-1, SR20R-51510-2, SR20RIV-31510, SR20RIV-51311, SR20R-31010, SR20R-51410, SR20RIV-31011, SR32J-31011, SR20R-30310, SR20R-30310-1, SR20RIV-30310, SR10J-30210, SR20R-30210, SR20RIV-30210, SR10J-30410, SR20RIV-30510.
A part number missing from the catalogue does not mean Mongtec cannot make it. Send the part number of the holder you use now, or a competitor's part number, and engineering will work out the matching holder and quote it.
Main dimensions are in the free PDF catalogue on this page. Dimensioned drawings for a specific holder are supplied by email once the enquiry is open.
Star Swiss Type Toolholders (PDF)
Star Swiss Type Toolholders — Ver.2026.09, 29 pages, PDF · Free download, no registration.
Send the machine model, the station you want to use and the part number you are replacing. An incomplete enquiry is still worth sending: Mongtec works out the rest from the machine model.
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Star is a trademark of its owner. Part numbers and machine names are quoted only to identify compatibility; Mongtec is an independent tooling brand.