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dIAl bore GAGes

84A, 84MA dIAl bore GAGes
1-1/2 – 12-1/8"/38-317.5MM
These fractional bore gages allow for bore measurements beyond the size range of our 82 Bore Gage.
They are comparison gages and should be set with a master ring gage, gage blocks with parallel jaws,
outside micrometers or vernier calipers. Ring gages are available by request, quoted by application.
Good practice is to set the gage to zero, as near to the desired dimension as possible.
Gages are well balanced, easy to use and have the following features:
• Can be easily held to inspect bores and hole sizes without removing the workpiece
• An adjustable range screw and two centralizing plungers provide accurate, three-point contact
for tool alignment in larger bores Bore GaGes
• All contacts and centralized plungers are hardened tool steel for wear and spring-loaded for sensitivity
• The housing and knurled handle are aluminum for light weight and good balance
• Dial indicators have jewel bearings for sensitivity
• Bore depths are also available up to 12" (300mm) in 1" (25mm) increments on special order
• Furnished in finished wood case
• Available with longer reach lengths, carbide contacts or electronic indicators with output capability
from our special order division

84AZ-111-5

84MAZ-161-6

84A Dial Bore Gages (1-1/2 - 12-1/2" Range)
Total Range Max. Bore Plunger Indicator
Cat. No. EDP with Extension Ext. Range Each Extension (inches) Depth Travel Grad.
84AZ-111-4J 00026 1-1/2-3" 12 1.500-1.625", 1.625-1.750", 1.750-1.875", 1.875-2.000", 2.000-2.125", 2.125-2.250", 3" .020" .0001"
84AZ-134-4J 00030 2.250-2.375", 2.375-2.500", 2.500-2.625", 2.625-2.750", 2.750-2.875", 2.875-3.000" .0005"
84AZ-111-5J 00027 3-5-1/16" 11 3.000-3.187", 3.187-3.375", 3.375-3.562", 3.562-3.750", 3.750-3.937", 3.937- 6" .030" .0001"
84AZ-134-5J 00031 4.125", 4.150-4.312", 4.312-4.500", 4.500-4.687", 4.687-4.875", 4.875-5.062" .0005"
84AZ-111-6J 00028 5-8" 4 5.000-5.750", 5.750-6.500", 6.500-7.250", 7.250-8.000" 6" .030" .0001"
84AZ-134-6J 00032 .0005"
84AZ-111-7J 00029 8-12-1/2" 3 8.000-9.500", 9.500-11.000", 11.000-12.500" 7" .030" .0001"
84AZ-134-7J 00033 .0005"
84MA Dial Bore Gages (38.1 - 317.5mm Range)
Total Range Max. Bore Plunger Indicator
Catalog No. EDP with Extension Ext. Range Each Extension (mm) Depth Travel Grad.
84MAZ-161-4J 00034 38.1-41.28mm, 41.28-44.45mm, 44.45-47.62mm, 47.62-50.8mm, 50.8 -53.98mm, 0.002 mm
3.175-76.2mm 12 53.98-57.15mm, 57.15-60.32mm, 60.32-63.5mm, 63.5-66.68mm, 66.68-69.85mm, 75mm 0.51mm
84MAZ-181-4J 00038 0.01 mm
69.85-73.02mm, 73.02-76.2mm
84MAZ-161-5J 00035 76.2-80.96mm, 80.96-85.72mm, 85.72-90.49mm, 90.49-95.25mm, 95.25-100.01mm, 0.002 mm
76.2-128.58mm 11 100.01-104.78mm, 104.78-109.54mm, 109.54- 114.3mm, 114.3-119.06mm, 119.06- 150mm 0.76mm
84MAZ-181-5J 00039 0.01 mm
123.82mm, 123.82-128.58mm
84MAZ-161-6J 00036 127-203.2mm 4 127-146.05mm, 146.05-165.1mm, 165.1-184.15mm, 184.15-203.2mm 150mm 0.76mm 0.002 mm
84MAZ-181-6J 00040 0.01 mm
84MAZ-161-7J 00037 203.2-317.5mm 3 203.2 - 241.3mm, 241.3 - 279.4mm, 279.4 - 317.5mm 175mm 0.76mm 0.002 mm
84MAZ-181-7J 00041 0.01 mm

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