# ServoCity Sub-Micro Gripper Kit

> ServoCity 637104 sub-micro gripper kit: geared jaws for a Hitec HS-55 or HS-5055MG sub-micro servo (not included, A15T spline), open to 47.56 mm between jaw tips, 32.4 × 44.9 mm closed, 4 mm mounting hole, 4.7 g without servo — the smallest, cheapest way to add a claw to a micro robot.

- Manufacturer: ServoCity
- Part number: 637104
- Category: Grippers & end effectors
- Canonical page: https://www.xirkit.io/products/servocity-sub-micro-gripper-kit-f0b0
- Structured JSON: https://www.xirkit.io/products/servocity-sub-micro-gripper-kit-f0b0/data.json
- Source: Xirkit structured parts catalog — every value traced to a cited document; unknowns are explicit.

## Key specifications

| Property | Value |
| --- | --- |
| Effector type | angular gripper |
| Degrees of freedom | 1 |
| Max jaw opening | 47.56 mm |
| Drive | servo |
| Actuator | none — needs a Hitec HS-55 or HS-5055MG |
| Control | PWM |
| Mount pattern | single Ø4 mm mounting hole |
| Weight | 4.7 g |
| Dimensions | 32.38 × 44.87 × 3.2 mm |

## Where to buy

| Supplier | Price | Stock | Checked | URL |
| --- | --- | --- | --- | --- |
| www.servocity.com | 6.99 USD | in_stock | 2026-09-29 | https://www.servocity.com/sub-micro-gripper-kit/ |

## FAQ

**How much does the ServoCity Sub-Micro Gripper Kit cost?**

From $6.99 at www.servocity.com. Prices are observed unit prices before tax and shipping.

**What are the ServoCity Sub-Micro Gripper Kit dimensions?**

32.38 × 44.87 × 3.2 mm. A STEP model is available for enclosure fit checks.

**Where does this ServoCity Sub-Micro Gripper Kit data come from?**

Every value in this record is traced to a source — 2 documents including the board and chip datasheets — with the page and table cited per value. Unknowns are left explicit, never guessed.

## Sources

- [ServoCity Sub-Micro Gripper Kit datasheet](https://www.servocity.com/sub-micro-gripper-kit/)
- [www.servocity.com listing](https://www.servocity.com/sub-micro-gripper-kit/)

## Part graph

### Alternatives (by use case)

- [DFRobot 2-DoF Robot Gripper (0–54 mm)](https://www.xirkit.io/products/dfrobot-2-dof-robot-gripper-0-54-mm-c509) — Both serve grasping and manipulation — check the trade-offs; $9 vs $6.99