Custom Size Master Setting Ring # 53-686-394

53-686-394 Fowler Custom Size Master Setting Ring: 3.151" - 3.940"

The Fowler 53-686-394 Custom Size Master Setting Ring has the following specifications:

• Size Nominal Diameter Range - Inch From - Up to & Including: 3.151" - 3.940"
• Geometric Form Tolerance Ovality/Taper Inch: 0.000039"
• Size Tolerance Inch: 0.000118"

NIST Calibration is available at an additional cost.

• X Class
• Used for accurate setting of internal measuring instruments.
• Made from oil-hardened, non-shrinking gage steel, hardened and tempered to Rockwell 62C
• Subzero treated at minus 80°C for dimensional stability.
• Actual size etched on each master ring.
• Calibrated at 20°C in laboratory conditions.
• Furnished with a manufacturer's certificate of calibration.
• Metric rings available on special order.

Custom Size Master Setting Rings

• 53-686-010: Custom Size Master Setting Ring 0.060" - 0.100"
• 53-686-196: Custom Size Master Setting Ring 0.101" - 2.360"
• 53-686-315: Custom Size Master Setting Ring 2.361" - 3.150"
• 53-686-394: Custom Size Master Setting Ring 3.151" - 3.940"
• 53-686-472: Custom Size Master Setting Ring 3.941" - 4.720"
• 53-686-551: Custom Size Master Setting Ring 4.721" - 5.510"
• 53-686-590: Custom Size Master Setting Ring 5.511" - 5.900"
• 53-686-630: Custom Size Master Setting Ring 5.901" - 6.300"
• 53-686-670: Custom Size Master Setting Ring 6.301" - 6.700"
• 53-686-709: Custom Size Master Setting Ring 6.701" - 7.090"
• 53-686-748: Custom Size Master Setting Ring 7.091" - 7.480"
• 53-686-787: Custom Size Master Setting Ring 7.481" - 7.870"
• 53-686-835: Custom Size Master Setting Ring 7.871" - 8.350"