SP-1900 Micro Grinder 3 mm Collet
- Horsepower: 14.5 hp
- Wattage: 14 watts
- Maximum Rotational Speed: 70000 rpm
- Power Source: Pneumatic
Refresh date unavailable · Based on the Amazon listing and published specifications, not hands-on testing.
A micro grinder sized for detail work through a small 3mm collet, worth considering mainly for fine, controlled tasks rather than general grinding.
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ASIN: B083XSJZ79Model: SP-1900Category: Straight Grinders
Overview
The SP-1900 is a micro grinder built around a small 0.1 inch (3mm) collet, sized for fine detail work rather than general grinding or stock removal. Beyond that collet size, this listing carries no further speed or power specifications.
Micro grinders in this size class are built for precision tasks such as engraving, jewelry work, hobby model finishing and small-part deburring, where control matters more than raw power. The 3mm collet matches the same small mounted points and burrs used across similar compact grinders, rather than the larger shanks a full-size die grinder takes.
- 0.1 inch (3mm) collet
- Micro grinder format
- Suited to detail and engraving bits
- Model SP-1900
Who it's for
Suits hobbyists, jewelers and modelers doing fine detail work with small burrs and points. Not a fit for anyone grinding larger stock, since the small collet rules out larger-shank accessories.
Pros and cons
- 3mm collet suits fine detail and engraving bits
- Compact size for precision work
- No speed or power specification listed
- Small collet limits it to small-shank accessories
Performance notes
A 3mm collet size caps what the tool can hold: small mounted points, burrs and engraving bits rather than larger grinding wheels or bits with thicker shanks. That narrow accessory range is the main thing that defines what jobs this tool suits, since no speed or power rating is given in this listing.
Specifications
| Brand | SP-1900 |
|---|---|
| Model | SP-1900 |
| Dimensions & fit | |
| Item Weight | 0.68 pounds |
| Capacity & performance | |
| Maximum Rotational Speed | 70000 rpm |
| Power & efficiency | |
| Horsepower | 14.5 hp |
| Wattage | 14 watts |
| Power Source | Pneumatic |
| Construction & materials | |
| Color | Multicolor |
| Other details | |
| Number Of Items | 1 |
| Style Name | Cylinder |
| Item Type Name | Air Micro Grinder |
Frequently asked questions
What collet size does the SP-1900 use?
0.1 inch, or 3mm, sized for small mounted points and engraving or detail bits.
Can the SP-1900 run larger grinding wheels?
No, its 3mm collet only accepts small-shank accessories, not larger wheels or bits.
What is the SP-1900 best suited for?
Fine detail grinding, engraving and deburring work rather than general-purpose or heavy grinding.