Magnetic Workholding Plates
The entire surface of these plates is magnetic to provide a powerful hold for grinding, drilling, and electrical discharge machining (EDM). They’re useful when clamps would interfere with your process and when there aren’t any convenient spots for clamping material. Pull the handle to switch the magnets on and off. Use the mounting clamps to secure the plate to your machine table and the removable back and side rails to keep your workpiece in position. Plates are sealed against dirt and liquid so they can be submerged in oil baths. They are not recommended for processes where workpieces are submerged in water.
Fine magnetic pole spacing provides the best hold on small or thin (1/4" or less) parts.
Standard magnetic pole spacing is suitable for most applications. It will provide the best grip on large or thick parts.
Plates with fine and standard magnetic pole spacing have more than twice the holding power of other plates. Use them with large and small parts.
For technical drawings and 3-D models, click on a part number.
Overall | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Wd. | Ht. | Max. Holding Power, psi | Magnet Type | Parallel Tolerance | Handle Attachment Type | Number of Mounting Clamps Included | Mounting Clamp Hole Diameter | Each | |
Fine Magnetic Pole Spacing | ||||||||||
| 7 1/2" | 4" | 2 3/4" | 40 | Permanent | 0.002" | Removable | 2 | 9/16" | 0000000 | 000000000 |
| 10 1/2" | 5" | 2 3/4" | 40 | Permanent | 0.002" | Removable | 2 | 9/16" | 0000000 | 00000000 |
| 12 1/2" | 6" | 2 3/4" | 40 | Permanent | 0.002" | Removable | 2 | 9/16" | 0000000 | 00000000 |
| 12 1/2" | 8" | 2 3/4" | 40 | Permanent | 0.002" | Removable | 2 | 9/16" | 0000000 | 00000000 |
| 12 1/2" | 12" | 2 3/4" | 40 | Permanent | 0.002" | Permanent | 2 | 9/16" | 0000000 | 00000000 |
| 14 1/2" | 6" | 2 3/4" | 40 | Permanent | 0.002" | Removable | 2 | 9/16" | 0000000 | 00000000 |
| 15 1/2" | 8" | 2 3/4" | 40 | Permanent | 0.002" | Permanent | 2 | 9/16" | 0000000 | 00000000 |
| 15 1/2" | 10" | 2 3/4" | 40 | Permanent | 0.002" | Permanent | 2 | 9/16" | 0000000 | 00000000 |
| 18 1/2" | 6" | 2 3/4" | 40 | Permanent | 0.002" | Removable | 2 | 9/16" | 0000000 | 00000000 |
| 18 1/2" | 8" | 2 3/4" | 40 | Permanent | 0.002" | Permanent | 2 | 9/16" | 0000000 | 00000000 |
| 18 1/2" | 10" | 2 3/4" | 40 | Permanent | 0.002" | Permanent | 2 | 9/16" | 0000000 | 00000000 |
| 18 1/2" | 12" | 2 3/4" | 40 | Permanent | 0.002" | Permanent | 2 | 9/16" | 0000000 | 00000000 |
| 24 1/2" | 10" | 2 3/4" | 40 | Permanent | 0.002" | Permanent | 2 | 9/16" | 0000000 | 00000000 |
| 24 1/2" | 12" | 2 3/4" | 40 | Permanent | 0.002" | Permanent | 2 | 9/16" | 0000000 | 00000000 |
Standard Magnetic Pole Spacing | ||||||||||
| 7 1/2" | 4" | 2 3/4" | 40 | Permanent | 0.002" | Removable | 2 | 9/16" | 0000000 | 00000000 |
| 10 1/2" | 5" | 2 3/4" | 40 | Permanent | 0.002" | Removable | 2 | 9/16" | 0000000 | 00000000 |
| 12 1/2" | 6" | 2 3/4" | 40 | Permanent | 0.002" | Removable | 2 | 9/16" | 0000000 | 00000000 |
| 12 1/2" | 8" | 2 3/4" | 40 | Permanent | 0.002" | Removable | 2 | 9/16" | 0000000 | 00000000 |
| 12 1/2" | 12" | 2 3/4" | 40 | Permanent | 0.002" | Permanent | 2 | 9/16" | 0000000 | 00000000 |
| 14 1/2" | 6" | 2 3/4" | 40 | Permanent | 0.002" | Removable | 2 | 9/16" | 0000000 | 00000000 |
| 15 1/2" | 8" | 2 3/4" | 40 | Permanent | 0.002" | Permanent | 2 | 9/16" | 0000000 | 00000000 |
| 15 1/2" | 10" | 2 3/4" | 40 | Permanent | 0.002" | Permanent | 2 | 9/16" | 0000000 | 00000000 |
| 18 1/2" | 6" | 2 3/4" | 40 | Permanent | 0.002" | Removable | 2 | 9/16" | 0000000 | 00000000 |
| 18 1/2" | 8" | 2 3/4" | 40 | Permanent | 0.002" | Permanent | 2 | 9/16" | 0000000 | 00000000 |
| 18 1/2" | 10" | 2 3/4" | 40 | Permanent | 0.002" | Permanent | 2 | 9/16" | 0000000 | 00000000 |
| 18 1/2" | 12" | 2 3/4" | 40 | Permanent | 0.002" | Permanent | 2 | 9/16" | 0000000 | 00000000 |
| 24 1/2" | 8" | 2 3/4" | 40 | Permanent | 0.002" | Permanent | 2 | 9/16" | 0000000 | 00000000 |
| 24 1/2" | 10" | 2 3/4" | 40 | Permanent | 0.002" | Permanent | 2 | 9/16" | 0000000 | 00000000 |
| 24 1/2" | 12" | 2 3/4" | 40 | Permanent | 0.002" | Permanent | 2 | 9/16" | 0000000 | 00000000 |
Fine and Standard Magnetic Pole Spacing | ||||||||||
| 4 3/4" | 4" | 2 1/2" | 90 | Permanent | 0.002" | Permanent | 2 | 9/16" | 0000000 | 00000000 |
| 7 1/4" | 6 1/2" | 2 3/4" | 90 | Permanent | 0.002" | Permanent | 2 | 9/16" | 0000000 | 00000000 |
| 9 1/4" | 4" | 2 1/2" | 90 | Permanent | 0.002" | Permanent | 2 | 9/16" | 0000000 | 00000000 |
| 11 1/4" | 6" | 2 3/4" | 90 | Permanent | 0.002" | Permanent | 2 | 9/16" | 0000000 | 00000000 |
| 13 1/4" | 5" | 2 3/4" | 90 | Permanent | 0.002" | Permanent | 2 | 9/16" | 0000000 | 00000000 |
| 15 1/2" | 6" | 2 3/4" | 90 | Permanent | 0.002" | Permanent | 2 | 9/16" | 0000000 | 00000000 |
| 15 3/4" | 8" | 2 3/4" | 90 | Permanent | 0.002" | Permanent | 2 | 9/16" | 0000000 | 00000000 |
| 15 3/4" | 10" | 2 3/4" | 90 | Permanent | 0.002" | Permanent | 2 | 9/16" | 0000000 | 00000000 |
| 18 3/4" | 8" | 2 3/4" | 90 | Permanent | 0.002" | Permanent | 2 | 9/16" | 0000000 | 00000000 |
| 18 3/4" | 10" | 2 3/4" | 90 | Permanent | 0.002" | Permanent | 2 | 9/16" | 0000000 | 00000000 |
| 18 3/4" | 12" | 3 1/2" | 90 | Permanent | 0.002" | Permanent | 2 | 9/16" | 0000000 | 00000000 |
| 20 3/4" | 8" | 2 3/4" | 90 | Permanent | 0.002" | Permanent | 2 | 9/16" | 0000000 | 00000000 |
| 20 3/4" | 10" | 2 3/4" | 90 | Permanent | 0.002" | Permanent | 2 | 9/16" | 0000000 | 00000000 |
| 24 3/4" | 8" | 2 3/4" | 90 | Permanent | 0.002" | Permanent | 2 | 9/16" | 0000000 | 00000000 |
| 24 3/4" | 10" | 3 1/2" | 90 | Permanent | 0.002" | Permanent | 2 | 9/16" | 0000000 | 00000000 |
| 24 3/4" | 12" | 3 1/2" | 90 | Permanent | 0.002" | Permanent | 2 | 9/16" | 0000000 | 000000000 |
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.
Chucks with fine magnetic pole spacing hold parts that are smaller or thinner than 1/4".
Chucks with standard magnetic pole spacing grip large and thick parts. They’re good for most applications.
For technical drawings and 3-D models, click on a part number.
Overall | Mounting Holes | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Diameter | Height | Maximum Holding Power, psi | Magnet Type | Parallel Tolerance | Number of | Thread Size  | Center-to-Center | Each | |
Fine Magnetic Pole Spacing | |||||||||
| 4" | 2" | 115 | Rare Earth | 0.002" | 3 | M6 | 3 11/32" | 00000000 | 0000000 |
| 5 1/8" | 2" | 115 | Rare Earth | 0.002" | 3 | M6 | 4 13/32" | 00000000 | 000000 |
| 6 1/4" | 3" | 30 | Permanent | 0.002" | 4 | 1/4"-20 | 4" | 00000000 | 00000000 |
| 6 3/8" | 2" | 115 | Rare Earth | 0.002" | 4 | M8 | 5 1/2" | 00000000 | 00000000 |
| 7 3/4" | 3" | 30 | Permanent | 0.002" | 4 | 3/8"-16 | 5" | 00000000 | 00000000 |
| 7 7/8" | 2" | 115 | Rare Earth | 0.002" | 4 | M8 | 7 3/32" | 00000000 | 00000000 |
| 9 7/8" | 2 1/2" | 115 | Rare Earth | 0.002" | 4 | M10 | 8 13/16" | 00000000 | 00000000 |
| 10 1/8" | 3" | 30 | Permanent | 0.002" | 4 | 3/8"-16 | 5" | 00000000 | 00000000 |
| 11 7/8" | 2 1/2" | 115 | Rare Earth | 0.002" | 4 | M10 | 10 1/4" | 00000000 | 00000000 |
| 12 1/4" | 3" | 30 | Permanent | 0.002" | 4 | 3/8"-16 | 5" | 00000000 | 00000000 |
| 15 3/4" | 2 1/2" | 115 | Rare Earth | 0.002" | 6 | M10 | 13 25/32" | 00000000 | 00000000 |
Standard Magnetic Pole Spacing | |||||||||
| 4" | 2" | 115 | Rare Earth | 0.002" | 3 | M6 | 3 11/32" | 00000000 | 000000 |
| 5 1/8" | 2" | 115 | Rare Earth | 0.002" | 3 | M6 | 4 13/32" | 00000000 | 000000 |
| 6 1/4" | 3" | 30 | Permanent | 0.002" | 4 | 1/4"-20 | 4" | 00000000 | 00000000 |
| 6 3/8" | 2" | 115 | Rare Earth | 0.002" | 4 | M8 | 5 1/2" | 00000000 | 00000000 |
| 7 3/4" | 3" | 30 | Permanent | 0.002" | 4 | 3/8"-16 | 5" | 00000000 | 00000000 |
| 7 7/8" | 2" | 115 | Rare Earth | 0.002" | 4 | M8 | 7 3/32" | 00000000 | 00000000 |
| 9 1/4" | 3" | 30 | Permanent | 0.002" | 4 | 3/8"-16 | 5" | 00000000 | 00000000 |
| 9 7/8" | 2 1/2" | 115 | Rare Earth | 0.002" | 4 | M10 | 8 13/16" | 00000000 | 00000000 |
| 10 1/8" | 3" | 30 | Permanent | 0.002" | 4 | 3/8"-16 | 5" | 00000000 | 00000000 |
| 11 7/8" | 2 1/2" | 115 | Rare Earth | 0.002" | 4 | M10 | 10 1/4" | 00000000 | 00000000 |
| 12 1/4" | 3" | 30 | Permanent | 0.002" | 4 | 3/8"-16 | 5" | 00000000 | 00000000 |
| 15 1/4" | 3 1/2" | 30 | Permanent | 0.002" | 6 | 5/16"-18 | 7 3/8" | 00000000 | 00000000 |
| 15 3/4" | 2 1/2" | 115 | Rare Earth | 0.002" | 6 | M10 | 13 25/32" | 00000000 | 00000000 |
| 16 1/4" | 3" | 30 | Permanent | 0.002" | 6 | 3/8"-16 | 9" | 00000000 | 00000000 |
| 20 1/4" | 3 1/2" | 30 | Permanent | 0.002" | 6 | 3/8"-16 | 12 13/32" | 00000000 | 000000000 |