SainSmart Genmitsu ER11 Spring Collet Set 7 Piece
- Material Type: Formulated Spring Steel
- Item Weight: 0.13 pounds
- Capacity: 0.3 inches
- Handle Type: abschließbar
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
Makes sense as a small ER11 spindle component for CNC setups, but confirm the exact spindle thread and collet range before ordering since that detail is not in the data here.
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ASIN: B07P98CKMRModel: ER11Category: Clamps
Overview
An ER11 sized collet component from SainSmart, weighing about 0.06 kilograms, roughly 2 ounces. ER11 is a standard used to hold cutting bits in CNC spindles and rotary tools, not a bench or bar clamp.
The category text and shortened title both call this a Clamp, but ER11 is a well known collet standard used to hold cutting tooling in CNC spindles. At roughly 2 ounces, the weight fits a single collet or clamping nut sized for that role rather than a bench or bar clamp.
- ER11 collet standard
- 0.06 kilograms (about 2 ounces)
- SainSmart branded
- Suited to CNC spindle or rotary tool use
Who it's for
CNC router or spindle owners who need an ER11 sized collet or clamping nut to hold bits, not woodworkers looking for a general purpose clamp.
Pros and cons
- ER11 is a widely used, easy to source standard
- Light and compact at about 2 ounces
- Exact thread size and spindle compatibility not confirmed
- Not a general purpose clamp despite the category label
Performance notes
ER11 is a standard collet system, so fit depends on matching the spindle's thread and collet range rather than on this part alone. The weight listed, 0.06 kilograms, is consistent with a single collet or nut rather than a full chuck assembly.
Specifications
| Brand | SainSmart |
|---|---|
| Model | ER11 |
| Dimensions & fit | |
| Item Weight | 0.13 poundslower than 93% of 222 clamps |
| Item Diameter | 0.3 inches |
| Thread Size | 1/8 inch (3.37mm) |
| Capacity & performance | |
| Capacity | 0.3 inches |
| Construction & materials | |
| Material Type | Formulated Spring Steel |
| Compatibility & installation | |
| Compatible Devices | CNC Milling Machine, CNC Workholding |
| Included components | |
| Included Components | 7Pcs ER11 Spring Collet Set |
| Other details | |
| Handle Type | abschließbar |
| Lock Type | Manuell |
Closest rivals on specs
IRWIN QUICK-GRIP Micro Bar Clamps 2 Pack- Item Weight 0.13 vs 0.11 pounds (+18%)
DEWALT DWHT83191 Clamp- Item Weight 0.13 vs 0.11 pounds (+18%)
Frequently asked questions
Is this a bar or bench clamp?
Despite the category label, ER11 is a collet standard used on CNC spindles and rotary tools, so this reads as a spindle clamping component rather than a general purpose clamp.
What is ER11 used for?
It is a standard collet size that holds cutting bits or tooling in a CNC spindle or similar rotary tool.
How much does it weigh?
0.06 kilograms, about 2 ounces, consistent with a single collet or clamping nut.