Magnet Shape: Ring with Cylindrical Borehole (Hole)
Material: Sintered Hard Ferrite (Ceramic) and Steel
Coating:  Nickel (Ni)       
Grade(Chinese Stardard):         Y30BH
Magnet ID:             FPCB-10-Y30BH-Ni  
Detailed magnetic properties data:
Residual Magnetic Flux Density (Br): 3.8-3.9 KGs (mT):  380-390 mT
Intrinsic Coercivity Force (Hcj):    2.80-2.95 KOe    223-235 KA/m
Coercivity Force (Hcb):              2.90-3.08 KOe    231-245 KA/m
Energy Density (BH)max:              3.4-3.7 MGOe     27.0-30.0 KJ/m³
Operating Temperature:               -40 °C to +250 °C
Magnetisation Direction: Axial / Radially magnetized
Pot Magnet Size:
Pot Diameter (D):  10 mm
Pot Height (H):    4.5 mm
Borehole  (d1):    3 mm
Borehole  (d2):    6 mm
Depth      (t):    3 mm
Tolerance:         +/-2% mm
Delivery time           7-25 days
Measurements

Pot magnet is one of the most efficient designs for gripping and holding. It consists of magnet material enclosed in a metal pot, while the active magnet face is not enclosed.
Pot magnet, is widely used as tools for various activities in workshops and developed for the current industrial needs, such as Positioning jigs, Work holding fixtures, Catches and latches, Insert into jigs and fixtures for holding, etc.

The Ferrite Pot Magnets are usually used in these fields:
Hanging signs and lights
Fastening antennas
Holding tarps
Making retrieval tools
Holding through non-ferrous materials
Use for fastening or holding steel doors
Insertion into molds
Insertion into fixtures
Incorporation into precision finished products