Signature Series Ejector Pins (Knockout Pins)

GenSwiss ejector pins (knockout pins) let you focus on making parts that make you money. Our ejector pin tips attach to ejector pin bases, allowing you to quickly swap out tips for the right job. Our kits come high pressure air or coolant-thru ready with tip sizes ranging from .040 inches to .625 inches. Kits are available for Citizen, Star, & Tsugami machines and each come with a base and an assortment of different sized tips.
Have several machines you want to outfit with the Signature Series Ejector pins? Want more than one tip of a specific size? Base packs and tip packs are now available, allowing you to put many ejector bases on several machines of the specific sized tip you require.
Kits For Citizen, STAR, & Tsugami

- 12 - 32mm Citizen machines
- 16 - 32mm STAR machines
- 12 - 20mm Tsugami machines
Interchangeable Tips

- Quick-Change interchangeable tips mate to ejector bases, cutting down on cost and reducing operation time.
- Multiple tip sizes with coolant-thru capability for different collet types and sizes. Diameters from .040in to .625in.
Tip & Base Packs

- Each tip size can be purchased in packs of 5
- Base packs allow will accommodate using ejector tips on up to 4 machines
Choose Your Machine Type
Citizen Machines
12mm
12mm Citizen Machines
Kit No. | Machine |
---|---|
EJK-CIT12-KIT-A | Citizen K12 Citizen L12 |
Each Kit Includes
Description | Length (in) | Diameter (in) | Thread | Coolant |
---|---|---|---|---|
Ejector Base | 1.55 | .160 | 4-48 (female) | No |
Ejector Base | 1.55 | .310 | 10-32 (female) | Yes |
Ejector Tip | .850 | .040 | 4-48 (male) | No |
Ejector Tip | .850 | .060 | 4-48 (male) | No |
Ejector Tip | .850 | .090 | 4-48 (male) | No |
Ejector Tip | .850 | .120 | 4-48 (male) | No |
Ejector Tip | 1.034 | .093 | 10-32 (male) | Yes |
Ejector Tip | 1.034 | .040 | 10-32 (male) | No |
Ejector Tip | 1.034 | .200 | 10-32 (male) | Yes |
Ejector Tip | 1.034 | .310 | 10-32 (male) | Yes |


16 & 20mm
16 & 20mm CITIZEN MACHINES
Kit No. | Machine |
---|---|
EJK-CIT1620-KIT-A | Citizen C16 Citizen A20 Citizen L20 Citizen M20 |
Each Kit Includes
Description | Length (in) | Diameter (in) | Thread | Coolant |
---|---|---|---|---|
Ejector Base | 1.6 | .276 | 10-32 (female) | Yes |
Ejector Tip | .5 | .625 | 10-32 (male) | Yes |
Ejector Tip | 1.034 | .093 | 10-32 (male) | Yes |
Ejector Tip | 1.034 | .040 | 10-32 (male) | No |
Ejector Tip | 1.034 | .070 | 10-32 (male) | No |
Ejector Tip | 1.034 | .200 | 10-32 (male) | Yes |
Stand-Alone Ejectors | 1.6 | .120 | M8 (female) | No |
Stand-Alone Ejectors | 1.6 | .240 | M8 (female) | Yes |
Stand-Alone Ejectors | 1.6 | .300 | M8 (female) | Yes |
Stand-Alone Ejectors | 1.6 | .394 | M8 (female) | Yes |


25 & 32mm
25 & 32mm CITIZEN MACHINES
Kit No. | Machine |
---|---|
EJK-CIT2532-KIT-A | Citizen L25 Citizen A32 Citizen L32 Citizen M32 |
Kit Includes...
Description | Length (in) | Diameter (in) | Thread | Coolant |
---|---|---|---|---|
Ejector Base | 1.6 | .276 | 10-32 (female) | Yes |
Ejector Tip | .5 | .625 | 10-32 (male) | Yes |
Ejector Tip | 1.034 | .093 | 10-32 (male) | Yes |
Ejector Tip | 1.034 | .040 | 10-32 (male) | No |
Ejector Tip | 1.034 | .070 | 10-32 (male) | No |
Ejector Tip | 1.034 | .200 | 10-32 (male) | Yes |
Stand-Alone Ejectors | 1.6 | .120 | M8 (female) | No |
Stand-Alone Ejectors | 1.6 | .240 | M8 (female) | Yes |
Stand-Alone Ejectors | 1.6 | .300 | M8 (female) | Yes |
Stand-Alone Ejectors | 1.6 | .394 | M8 (female) | Yes |
Adapter | .80 | .394 | M10 (male) M8 (female) |
Yes |


Assorted Tip Kits
EJK-10320KIT-A
Kit No. | Machine |
---|---|
EJK-1032-KIT-A | Citizen K12, L23 Citizen C16 Citizen A20, L20 Citizen L25 Citizen A32, L32, M32 |
KIT Includes...
Description | Length (in) | Diameter (in) | Thread | Coolant |
---|---|---|---|---|
Ejector Tip | 1.034 | .040 | 10-32 | No |
Ejector Tip | 1.034 | .070 | 10-32 | No |
Ejector Tip | 1.034 | .093 | 10-32 | No |
Ejector Tip | 1.034 | .093 | 10-32 | Yes |
Ejector Tip | 1.034 | .120 | 10-32 | Yes |
Ejector Tip | 1.034 | .150 | 10-32 | Yes |
Ejector Tip | 1.034 | .200 | 10-32 | Yes |
Ejector Tip | 1.034 | .250 | 10-32 | Yes |
Ejector Tip | 1.034 | .310 | 10-32 | Yes |

EJK-0448-KIT-A
Kit No. | Machine |
---|---|
EJK-0448-KIT-A | Citizen K12 Citizen L12 |
KIT INCLUDES...
Description | Length (in) | Diameter (in) | Thread | Coolant |
---|---|---|---|---|
Ejector Tip | .850 | .040 | 4-48 | No |
Ejector Tip | .850 | .060 | 4-48 | No |
Ejector Tip | .850 | .090 | 4-48 | No |
Ejector Tip | .850 | .120 | 4-48 | No |

EJK-0M8-KIT-A
Kit No. | Machine |
---|---|
EJK-0M8-KIT-A | Citizen C16 Citizen A20, L20 Citizen L25 Citizen A32, L32, M32 |
KIT INCLUDES...
Description | Length (in) | Diameter (in) | Thread | Coolant |
---|---|---|---|---|
Stand-Alone Pin | 1.6 | .120 | M8 | No |
Stand-Alone Pin | 1.6 | .240 | M8 | Yes |
Stand-Alone Pin | 1.6 | .300 | M8 | Yes |
Stand-Alone Pin | 1.6 | .394 | M8 | Yes |

Ejector Base Packs

EACH PACK INCLUDES 4 PIECES
Machine | Pieces | Fits Ejector Tips | Coolant Thru | Item No. | Pack No. |
---|---|---|---|---|---|
Citizen 12mm | 4 | 10-32 | Yes | 7512-000151 | EJK-PACKBASE-M5-1032-155-IC |
Citizen 12mm | 4 | 4-48 | Yes | 7512-000152 | EJK-PACKBASE-M5-448-155-IC* |
Citizen 16, 20mm | 4 | 10-32 | Yes | 7512-000153 | EJK-PACKBASE-M8-1032-160-IC |
Citizen 25, 32mm | 4 | 10-32 | Yes | 7512-000154 | EJK-PACKBASE-M10-1032-160-IC |
Note: Requires tips from kit EJK-CIT12-KIT-A or kit EJK-0448-KIT-A
Tip Packs

Each Pack Includes 5 Pieces Of A Single Size
Item No. | Pack No. | Diameter | Pieces | Coolant-Thru | Thread |
---|---|---|---|---|---|
7512-000163 | EJK-PACKTIP-1032-1034-040 | .040in | 5 | No | 10-32 |
7512-000162 | EJK-PACKTIP-1032-1034-070 | .070in | 5 | No | 10-32 |
7512-000161 | EJK-PACKTIP-1032-1034-093 | .093in | 5 | No | 10-32 |
7512-000164 | EJK-PACKTIP-1032-1034-093-IC | .093in | 5 | Yes | 10-32 |
7512-000160 | EJK-PACKTIP-1032-1034-120-IC | .120in | 5 | Yes | 10-32 |
7512-000159 | EJK-PACKTIP-1032-1034-150-IC | .150in | 5 | Yes | 10-32 |
7512-000158 | EJK-PACKTIP-1032-1034-200-IC | .200in | 5 | Yes | 10-32 |
7512-000157 | EJK-PACKTIP-1032-1034-250-IC | .250in | 5 | Yes | 10-32 |
7512-000155 | EJK-PACKTIP-1032-1034-310-IC | .310in | 5 | Yes | 10-32 |
7512-000167 | EJK-PACKTIP-1032-1034-375 | .375in | 5 | No | 10-32 |
7512-000168 | EJK-PACKTIP-1032-1034-375-IC | .375in | 5 | Yes | 10-32 |
7512-000165 | EJK-PACKTIP-1032-1034-437 | .437in | 5 | No | 10-32 |
7512-000166 | EJK-PACKTIP-1032-1034-437-IC | .437in | 5 | Yes | 10-32 |
7512-000169 | EJK-PACKTIP-1032-500-500-IC | .500in | 5 | Yes | 10-32 |
7512-000170 | EJK-PACKTIP-1032-500-625-IC | .625in | 5 | Yes | 10-32 |
Note: Requires a base