20g 14K Gold Fill Jump Rings

Price:

$94.25

* Inner Diameter:

* Quantity (in ozt):

Quantity:

Product Description

My jump rings are made completely by me - hand coiled wire on hardened steel mandrels, then precision cut for perfectly flush cut rings. Tumbled with stainless steel shot to clean, harden and bring them to a beautiful shine makes them perfect for making chainmaille or to use however you like in your own handmade jewelry.

20g wire diameter: 0.812mm

wire gauge	approx. inner diameter (mandrel size in mm)		approx. outer diameter	aspect ratio	ring count per ounce troy
wire gauge	approx. inner diameter (mandrel size in mm)		approx. outer diameter	aspect ratio	1 ozt	.75 ozt	.5 ozt	.25 ozt	.125 ozt	.0625 ozt
20g	2		3.7	2.5	748	561	374	187	93	47
	2.25		3.9	2.8	687	515	343	171	85	43
	2.5		4.2	3.1	635	476	317	158	79	40
	2.75		4.4	3.4	616	462	308	154	77	38
	3		4.7	3.7	552	414	276	138	69	34
	3.25		4.9	4.0	518	388	259	129	64	32
	3.5		5.2	4.3	488	366	244	122	61	30
	4		5.7	4.9	437	328	218	109	54	27
	4.5		6.2	5.5	396	297	198	99	49	24
	5.0		6.7	6.2	362	271	181	90	45	22
	5.5		7.2	6.8	333	250	166	83	41	21
	6.0		7.7	7.4	308	231	154	77	38	18
	mandrel diameter	actual ID*	actual OD*	actual AR*
	6.5	6.9	8.5	8.5	288	216	144	72	36	18
	7.0	7.4	9.0	9.1	268	201	134	67	33	16
	8.0	8.5	10.1	10.4	232	174	116	58	29	14
	9.0	10.2	11.8	12.6	196	147	98	49	24	12
	10.0	10.9	12.5	13.4	180	135	90	45	22	11
	11.0	12.7	14.3	15.6	160	120	80	40	20	10
	12.0	13.2	14.8	16.3	152	114	76	38	19	9

The "actual" measurements on the large diameter sizes above were made after closing the ring with my pliers, tight and flush without any gaps. The bigger the diameter of the ring, the more the coil of wire can "spring back" from the mandrel which it's coiled on, causing the ring, and thus the ID and OD to be larger than the mandrel size. Please note that I still label the rings by the size of the mandrel they were coiled on (or it would be too confusing!)

Inner diameter is the diameter of the mandrel, or steel rod that I coil the wire onto before cutting into rings. Some springback will occur, making the inner diameter of the ring slightly larger than the mandrel diameter. Inner and outer diameter may be +/- .2mm from these calculations.

For more jump ring information please see the Jump Ring Info page.