The Finest Shaft in the Longarm Needle Line
The Groz-Beckert 134MR line extends from the ultra-fine #12 through the heavy #20 (5.0). The #12 MR 2.5 R-Point is the finest end of this range -- a needle shaft so narrow (2.5mm diameter) that it leaves a near-invisible penetration hole in all but the heaviest fabrics. This fineness makes it the appropriate choice for sheer fabrics like organza, fine silk, and voile where visible needle holes would compromise the finished work's appearance, and for specialty decorative applications where stitch minimalism is the design goal.
When the #12 Is Appropriate
Most longarm quilting on standard quilting cotton uses the #18 (4.0). The #12 is for specific applications: sheer and translucent fabrics where needle hole visibility is a critical issue; delicate silks and fine linens that may show even a size 16 hole; some art textile work where the finest possible stitch entry point is part of the design specification; and exploratory specialty work where a quilter is testing the thinnest practical needle for an unusual material.
Top 10 Uses
- Sheer and Semi-Translucent Fabric Quilting -- Organza, voile, and fine silk organza where needle holes must be as small as possible.
- Ultra-Fine Silk Quilting -- The finest silk charmeuse and habotai requires the #12 to avoid fabric damage.
- Specialty Art Textile Work on Fine Materials -- Art quilt work on specialty materials where a very fine needle is specified by the application.
- Decorative Thread Work on Delicate Background Fabric -- Where the background fabric is extremely fine and the thread work is the star.
- Lightweight Linen and Cotton Lawn -- Fine lawn and lightweight linen benefit from the #12's minimal penetration hole.
- Completing the Full Needle Size Range -- Studios stocking all sizes from #12 through #20 are prepared for any fabric weight.
- Experimental Specialty Fabric Projects -- When working with a fabric of unknown or unusual characteristics, the #12 provides the least-invasive starting point.
- Multi-Layer Sheer Work -- When quilting through multiple sheer layers, a fine needle minimizes cumulative hole size.
- Teaching the Needle Size-Fabric Weight Relationship -- The #12 provides the fine end of a demonstration of how needle size affects fabric and stitch quality.
- Precision Embroidery on Fine Fabric -- The finest decorative thread work on the finest fabrics requires needle fineness to match.
Frequently Asked Questions
Is the #12 appropriate for standard quilting cotton?
The #12 is too fine for most standard quilting cotton -- it may deflect slightly under the tension of quilting through a cotton sandwich, and the fine shaft can be prone to bending under sustained production loads. For standard cotton, the #16 or #18 is the appropriate choice. Reserve the #12 for genuinely fine specialty applications.
How many needles per package?
10 needles per package.
Shop Groz-Beckert #12 MR 2.5 Needle
The finest shaft for the finest fabrics. When only the most delicate needle penetration will do.
