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The 875SM series of magnetic adapters provides an SMR nest which mounts in holes having diameters from 1/8" to 5/8" or from 4mm to 15mm.  Shank diameters are held to very close tolerances for precision slip fits.  The adapter holds the center point of a 0.875" diameter SMR on centerline of the shank to a tolerance of ±0.0005" (±0.013mm).  The adapter also holds the center of the SMR to a known offset height at a tolerance of  ±0.0005" (±0.013mm).  Refer to the table below for the available offset and shank diameter combinations.  Choose any "A" value from the table below (center), and pair with any "B" value (table at right, below) to create the item number for the product that you want, for example, 875SM-5000-12MM.

Part number construction: Offset A 0.500" (see note*) 5000 1.000" 10000 *Note: For adapters having an offset of 0.500", the following "B" choices are not available: 1250, 1875, 4MM, 5MM, and 6MM.

Shank dia. B Shank dia. B 1/8" 1250 4 mm 4MM 3/16" 1875 5 mm 5MM 1/4" 2500 6 mm 6MM 5/16" 3125 7 mm 7MM 3/8" 3750 8 mm 8MM 7/16" 4375 9 mm 9MM 1/2" 5000 10 mm 10MM 9/16" 5625 11 mm 11MM 5/8" 6250 12 mm 12MM     13 mm 13MM     14 mm 14MM     15 mm 15MM