Bore Gages
Dorsey Bore Gages
Bore gages are comparative instruments designed to check hole diameter and condition. These bore gages use the principle of two points gaging and three point centralization. The gaging contacts are diametrically opposed which allows the most accurate reading of a bore. The reference contact is constructed to allow range extensions and adapters to be added to change the measuring size of the bore gage without loss of accuracy or balance.
During use, the bore gage is inserted on an angle for easy entry into the bore. The centralize insures locating on the true diameter. The gage is "rocked" and the indicator is observed to find the lowest measurement to obtain a true diameter reading.
Dorsey offers a variety of reference masters from specific size master rings to Dorsey's corresponding family of adjustable bore gage setmasters.
- DBL Bore Gages
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DBL Series - Internal Dial Bore Gages
DBL self centralizing bore gages are ideal for toolroom applications. Easy to use, easy to disassemble and easy to clean. Only 4 moving parts are used in this precision economical bore gage
- All DBL series gages include carbide centralizing contacts, a .0001" graduation dial indicator and fitted wooden storage box
- Measurement range from .25" to 6"
- Ergonomic and massive thermal isolation handle
- Integrated range extension / contact. Replaceable contacts available in steel, carbide or diamond
- Robust external centralizer reed spring
- Stainless steel plunger is encased in lightweight extension tubing. Custom lenght available up to 72"
- Proven cam transfer is accurate and linear over its entire range
Download catalog pages with complete DBL bore gages offering
Dorsey Standard Bore Gages
- Standard Bore Gages
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This design of rugged production line bore gages has been the industry standard for more than 60 years. Dorsey offers exact replacements built to the same exacting specification and precision as the original Standard Gage® product. Interchangeable repair parts for these models are also available.
- Comfortable & ergonomic well balanced handle, can be removed to gain clearance in restricted areas
- Precision machined aluminum dial unit housing
- Stainless steel bore gage extension tubing in a wide variety of standard and special lenghts
- Thermally insulated high impact resistant shield protects extension tubing
- Replacable contacts available in steel, carbide or diamond
- Proven bell crank transfer is accurate and linear over its entire range
- Precisely machined cast phosphor bronze gaging head for sensitivity and durability
- All bore gage sizes utilize the same dial unit housing for extreme versality
- Additional bore gage styles designed especially for applications where space restrictions or gaging positions are not suitable to use of standard style bore gages housing. These Include:
- Right angle style - for jig boring or jig grinding machine operations
- Vertical style - for vertical axis bores at eye level; best choice for bench inspection applications
- Perpendicular style - for vertical axis bores below eye level
- Pistol grip style - for limited access applications
- Flush mount style - for limited access applications
Download catalog pages with complete Standard bore gages offering
Page C-5Page C-6Page C-7Page C-8Page C-10
Dial Bore Gage Combination Kit
- Bore Gage Kit
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Features:
- Industry’s most popular dial bore gages now available in an easy-to-use combination kit
- Standard with jeweled shock proof indicator movement
- Available with a wide variety of indicators including .00005" or 0.001mm
- Considerable cost savings
- Convenient carrying case
- Ideal for small shops or short production runs
- Interchangeable bore gage heads and range extensions to cover diameters from 1.000" to 8.000" or 25mm to 200mm
- Replaces separate dial bore gages covering the same ranges as Models # 2, 3, 4, and 5
Download catalog page with complete bore gage kit offering
ID Indicating Plug Bore Gages
- Plug Bore Gages
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Dorsey’s indicating plug gages are used for repetitive bore measurement applications where extreme accuracy is important. These high accuracy gages often take the place of air or electronic bore gages.
The indication plug gage is of a value for rapid checking of bearings, bushings, connecting rods, etc. In addition to giving the diameter in quantitive terms, the indicating plug gage will detect ant tapered, bellmouth or out-of-round condition.
Plug Bore Gage Features:
- Self centering plug head eliminates operator influence for extremely accurate applications
- Non tipping design offers fast / simple accurate results
- Carbide contacts are housed and protected by a dedicated hardened steel sleeve which is ground approximately .001" smaller than the lower limit of the bore being inspected
- Single bore gage dial unit housing can be used with interchangeable plug heads
- Plug heads: choice of 3 "H" dimensions allows measurement of thru bores, blind holes or super blind holes
Download catalog page with plug bore gages offering