Magnetic Workholding Chucks

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Magnetic Workholding Chucks

Magnetic Workholding Plates

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31 Products

Magnetic Workholding Chucks

To grind, drill, lightly mill, and machine parts that rotate around an axis, these chucks hold parts in place magnetically so you can access their inner and outer diameters. Use them when clamps will not fit or could damage the part’s finish. To switch the magnetic grip on and off, pull their handle. They have mounting holes for fitting in your machine, or your machine’s chuck can hold them.

Fine Magnetic Pole Spacing—Chucks with fine magnetic pole spacing hold parts that are smaller or thinner than _1/4".

Standard Magnetic Pole Spacing—Chucks with standard magnetic pole spacing grip large and thick parts. They’re good for most applications.

	Overall						Mounting Holes
	Dia.	Ht.	Max. Holding Power, psi	Magnet Type	Parallel Tolerance	Handle Attachment Permanence	No. of	Thread Size	Ctr.-to-Ctr.		Each
Fine Magnetic Pole Spacing



		4"	2"	115	Rare Earth	0.002"	Removable	3	M6	3 11/32"	9090N133	0000000


		5 1/8"	2"	115	Rare Earth	0.002"	Removable	3	M6	4 13/32"	9090N134	000000
		6 1/4"	3"	30	Permanent	0.002"	Removable	4	1/4"-20	4"	9090N121	00000000
		6 3/8"	2"	115	Rare Earth	0.002"	Removable	4	M8	5 1/2"	9090N135	00000000
		7 3/4"	3"	30	Permanent	0.002"	Removable	4	3/8"-16	5"	9090N122	00000000
		7 7/8"	2"	115	Rare Earth	0.002"	Removable	4	M8	7 3/32"	9090N136	00000000
		9 7/8"	2 1/2"	115	Rare Earth	0.002"	Removable	4	M10	8 13/16"	9090N137	00000000
		10 1/8"	3"	30	Permanent	0.002"	Removable	4	3/8"-16	5"	9090N123	00000000
		11 7/8"	2 1/2"	115	Rare Earth	0.002"	Removable	4	M10	10 1/4"	9090N138	00000000
		12 1/4"	3"	30	Permanent	0.002"	Removable	4	3/8"-16	5"	9090N124	00000000
		15 3/4"	2 1/2"	115	Rare Earth	0.002"	Removable	6	M10	13 25/32"	9090N139	00000000


		Standard Magnetic Pole Spacing



				4"	2"	115	Rare Earth	0.002"	Removable	3	M6	3 11/32"	9090N125	000000


				5 1/8"	2"	115	Rare Earth	0.002"	Removable	3	M6	4 13/32"	9090N126	000000
				5 1/2"	3"	30	Permanent	0.002"	Removable	4	1/4"-20	4"	9090N111	00000000
				6 1/4"	3"	30	Permanent	0.002"	Removable	4	1/4"-20	4"	9090N112	00000000
				6 3/8"	2"	115	Rare Earth	0.002"	Removable	4	M8	5 1/2"	9090N127	00000000
				7 3/4"	3"	30	Permanent	0.002"	Removable	4	3/8"-16	5"	9090N113	00000000
				7 7/8"	2"	115	Rare Earth	0.002"	Removable	4	M8	7 3/32"	9090N128	00000000
				9 1/4"	3"	30	Permanent	0.002"	Removable	4	3/8"-16	5"	9090N114	00000000
				9 7/8"	2 1/2"	115	Rare Earth	0.002"	Removable	4	M10	8 13/16"	9090N129	00000000
				10 1/8"	3"	30	Permanent	0.002"	Removable	4	3/8"-16	5"	9090N115	00000000
				11 7/8"	2 1/2"	115	Rare Earth	0.002"	Removable	4	M10	10 1/4"	9090N131	00000000


				12 1/4"	3"	30	Permanent	0.002"	Removable	4	3/8"-16	5"	9090N116	00000000
				15 1/4"	3 1/2"	30	Permanent	0.002"	Removable	6	5/16"-18	7 3/8"	9090N117	00000000
				15 3/4"	2 1/2"	115	Rare Earth	0.002"	Removable	6	M10	13 25/32"	9090N132	00000000
				16 1/4"	3"	30	Permanent	0.002"	Removable	6	3/8"-16	9"	9090N118	00000000
				20 1/4"	3 1/2"	30	Permanent	0.002"	Removable	6	3/8"-16	12 13/32"	9090N119	000000000

Parallels for Magnetic Workholding

Use with magnetic workholding chucks and plates to extend their holding power above the working surface. These parallels are laminated with _1/16"-thin layers of iron and stainless steel for a strong, consistent hold. Compared to parallels made from aluminum or brass, these are harder and more dent resistant, so they hold their shape over time. Each layer is entirely fused together with copper brazing, so you can machine these parallels without the layers separating. Note: Parallels are not magnetic on their own.

Sold as Matched Pair—Manufactured and ground together to ensure they are parallel and square to each other with a tolerance of 0.0002".

4 Precision-Ground Sides—Precision ground on the top edge, bottom edge, and both faces.

							Sold Individually		Sold as Matched Pair
				Tolerance
	Lg.	Thk.	Ht.	Ht.	Parallel	Material		Each		Pair
4 Precision-Ground Sides



		6"	1"	2"	-0.005" to 0.005"	0.0002"	Copper-Brazed Iron, Copper-Brazed Stainless Steel	8235N11	0000000	8235N21	0000000


		8"	1"	4"	-0.005" to 0.005"	0.0002"	Copper-Brazed Iron, Copper-Brazed Stainless Steel	8235N12	000000	8235N22	00000000