Functional Size Gages

Functional Size InspectionGagemaker-PG-6000-on-part2Gagemaker-RG-7000-on-Part

Functional gauging takes into account the cumulative effects of diameter, lead, taper, flank angle and form error. Experience the same functionality of ring and plugs with the added benefit of accurately inspecting a range of sizes.

Functional thread inspection gages, or GO/NO GO gages, measure thread diameters. These functional gages are adjustable within a size range and use interchangeable thread rolls to measure different pitch threads.

Setting dimensions for the functional pitch diameter gages are provided by the TDWIN Thread Disk software. Gages can be set with specifically sized rod standards or a MIC TRAC Gage Setting System (MT-3000).

External Functional Size

Gagemaker-RG-7000-on-Part-in-Lathe

These functional size inspection (or “GO/NO GO”) gages measure external thread diameters ranging from ⅝” – 24″. The gages are adjustable within a size range and use interchangeable thread rolls to measure different pitch threads.

Setting dimensions for the functional pitch diameter gages are provided by the TDWIN Thread Disk Software.  Indicators have a .5″ travel and .0005″ resolution with higher resolutions available.

Thread roll sets not included.The software and thread rolls are sold separately.

RangeIndicator ResolutionIndicator TravelDescriptionModel
⅝” – 4”
(15.9 mm – 101.6 mm)
.0005” ½”External Functional Size Thread Roll GageRG-7000
⅝” – 4”
(15.9 mm – 101.6 mm)
.01 mm10 mmExternal Functional Size Thread Roll Gage with metric indicatorRG-7000-M
4” – 8”
(101.6 mm – 203.2 mm)
.0005” ½”External Functional Size Thread Roll GageRG-7001
4” – 8”
(101.6 mm – 203.2 mm)
.01 mm10 mmExternal Functional Size Thread Roll Gage with metric indicatorRG-7001-M
8” – 12”
(203.2 mm – 304.8 mm)
.0005” ½”External Functional Size Thread Roll GageRG-7002
8” – 12”
(203.2 mm – 304.8 mm)
.01 mm10 mmExternal Functional Size Thread Roll Gage with metric indicatorRG-7002-M
12” – 16”
(304.8 mm – 406.4 mm)
.0005” ½”External Functional Size Thread Roll GageRG-7003
12” – 16”
(304.8 mm – 406.4 mm)
.01 mm10 mmExternal Functional Size Thread Roll Gage with metric indicatorRG-7003-M
16” – 20”
(406.4 mm – 508 mm)
.0005” ½”External Functional Size Thread Roll GageRG-7004
16” – 20”
(406.4 mm – 508 mm)
.01 mm10 mmExternal Functional Size Thread Roll Gage with metric indicatorRG-7004-M
20” – 24”
(508 mm – 609.6 mm)
.0005” ½”External Functional Size Thread Roll GageRG-7005
20” – 24”
(508 mm – 609.6 mm)
.01 mm10 mmExternal Functional Size Thread Roll Gage with metric indicatorRG-7005-M

Internal Functional Size

Gagemaker also manufactures functional thread inspection gages that inspect internal threads ranging in diameter from 1.5″ to 24″. The gages are adjustable within a size range and use interchangeable thread rolls to measure different pitch threads. Indicators have a .5″ travel and .0005″ resolution with higher resolutions available.

Thread roll sets not included.The software and thread rolls are sold separately.

RangeIndicator ResolutionIndicator TravelReachDescriptionModel
1½” – 9”
(38 mm – 228.6 mm)
.0005” ½”2½”Internal Functional Size Thread Roll GagePG-6000
1½” – 9”
(38 mm – 228.6 mm)
.0001” ½”2½”Internal Functional Size Thread Roll Gage with high resolution indicatorPG-6000-1
1½” – 9”
(38 mm – 228.6 mm)
.01 mm10 mm63.5 mmInternal Functional Size Thread Roll Gage with metric indicatorPG-6000-M
9” – 16”
(228.6 mm – 406.4 mm)
.0005” ½”2½”Internal Functional Size Thread Roll GagePG-6001
9” – 16”
(228.6 mm – 406.4 mm)
.0001” ½”2½”Internal Functional Size Thread Roll Gage with high resolution indicatorPG-6001-1
9” – 16”
(228.6 mm – 406.4 mm)
.01 mm10 mm63.5 mmInternal Functional Size Thread Roll Gage with metric indicatorPG-6001-M
16” – 24”
(406.4 mm – 609.6 mm)
.0005” ½”2½”Internal Functional Size Thread Roll GagePG-6002
16” – 24”
(406.4 mm – 609.6 mm)
.0001” ½”2½”Internal Functional Size Thread Roll Gage with high resolution indicatorPG-6002-1
16” – 24”
(406.4 mm – 609.6 mm)
.01 mm10 mm63.5 mmInternal Functional Size Thread Roll Gage with metric indicatorPG-6002-M
24″ – 32"
(609.6 mm – 812.8 mm)
.0005” ½”2½”Internal Functional Size Thread Roll GagePG-6003
24″ – 32"
(609.6 mm – 812.8 mm)
.0001” ½”2½”Internal Functional Size Thread Roll Gage with high resolution indicatorPG-6003-1
24″ – 32"
(609.6 mm – 812.8 mm)
.01 mm10 mm63.5 mmInternal Functional Size Thread Roll Gage with metric indicatorPG-6003-M
Gagemaker-PG-6000-on-Part

Functional Size Gage Replacement Parts

Gagemaker provides replacement parts and accessories for our functional size gages.

Internal/External GageDescriptionModel
External External Gage Lower Adjustment Arm RG-LAA
InternalInternal Gage Replacement Arm Set PG-6000-SA
InternalInternal Gage Extended Reach Arm Set PG-6000-XA
InternalLocking T-nut for Internal Gage Arms PG-6000-17

Deep Bore Internal Functional Size

Gagemaker-DPG-6500-Inspecting

The DPG-6500 gage inspects diameters of internal threads using thread rolls. This functional diameter gage inspects the effects of all thread element variations and reports any deviations.

All thread rolls are sold as sets separately.

PitchesDiametersReachDescriptionModel
4 Pitch and finer2.970” – 4.400”
(75.4 mm - 111.76 mm)
12" (304.8 mm)Deep bore internal functional size thread roll gage. Includes DPG-A1 Extension Arm.DPG-6500
ReachDiametersDescriptionModel
6" (152.4 mm)-Handle Extension Assembly for DPG-6000*DPG-6R
8" (203.2 mm)-Handle Extension Assembly for DPG-6000*DPG-8R
12" (304.8 mm)-Handle Extension Assembly for DPG-6000*DPG-12R
18" (457.2 mm)Handle Extension AssemblyDPG-18R
24" (609.6 mm)-Handle Extension AssemblyDPG-24R
- 3 - 4.30”
(76.2 - 109.22 mm)
Diameter Extension ArmsDPG-1
- 4.30 - 5.10”
(109.22 - 129.54mm)
Diameter Extension ArmsDPG-2
-5.10 - 5.90”
(129.54 - 149.86 mm)
Diameter Extension ArmsDPG-3
-5.90 - 6.70”
(149.86 - 170.18 mm)
Diameter Extension ArmsDPG-4
-6.70 - 7.50”
(170.18 - 190.5 mm)
Diameter Extension ArmsDPG-5
-7.50 - 8.30”
(190.5 - 210.82 mm)
Diameter Extension ArmsDPG-6
-8.30 - 9.10”
(210.82 - 231.14 mm)
Diameter Extension ArmsDPG-7

*Not compatible with the DPG-6500.

Thread Rolls

Gagemaker thread rolls are sold in matched sets of two rolls. Specify the form and pitch of the thread when ordering. Our most popular models are listed below, but additional thread types and pitches and custom designed sets are available. Please contact customer service for more information. Thread rolls sets are sold separately.

UN Series (60° “V”)

“TRV” thread rolls inspect the functional fit of machine threaded parts with 60° “V” thread forms. These thread rolls are designed specifically for internal or external applications. Additional pitches are available. Please contact customer service for more information.

PitchDescriptionModel
4External 4 pitch UN/60° “V” Thread Rolls, Set of 2TRVE-4P
5External 5 pitch UN/60° “V” Thread Rolls, Set of 2TRVE-5P
6External 6 pitch UN/60° “V” Thread Rolls, Set of 2TRVE-6P
8External 8 pitch UN/60° “V” Thread Rolls, Set of 2TRVE-8P
10External 10 pitch UN/60° “V” Thread Rolls, Set of 2TRVE-10P
12External 12 pitch UN/60° “V” Thread Rolls, Set of 2TRVE-12P
14External 14 pitch UN/60° “V” Thread Rolls, Set of 2TRVE-14P
16External 16 pitch UN/60° “V” Thread Rolls, Set of 2TRVE-16P
18External 18 pitch UN/60° “V” Thread Rolls, Set of 2TRVE-18P
20External 20 pitch UN/60° “V” Thread Rolls, Set of 2TRVE-20P
PitchDescriptionModel
4Internal 4 pitch UN/60° “V” Thread Rolls, Set of 2TRVI-4P
5Internal 5 pitch UN/60° “V” Thread Rolls, Set of 2TRVI-5P
6Internal 6 pitch UN/60° “V” Thread Rolls, Set of 2TRVI-6P
8Internal 8 pitch UN/60° “V” Thread Rolls, Set of 2TRVI-8P
10Internal 10 pitch UN/60° “V” Thread Rolls, Set of 2TRVI-10P
12Internal 12 pitch UN/60° “V” Thread Rolls, Set of 2TRVI-12P
14Internal 14 pitch UN/60° “V” Thread Rolls, Set of 2TRVI-14P
16Internal 16 pitch UN/60° “V” Thread Rolls, Set of 2TRVI-16P
18Internal 18 pitch UN/60° “V” Thread Rolls, Set of 2TRVI-18P
20Internal 20 pitch UN/60° “V” Thread Rolls, Set of 2TRVI-20P
ACME and Stub ACME

“TRA” and “TRSA” thread rolls inspect the functional fit of parts with 29° ACME and Stub ACME thread forms. “TRSAM1” and “TRSAM2” inspect the functional fit of Stub ACME Modified-1 and Stub ACME Modified -2 thread forms. Additional pitches are available. Please contact customer service for more information.

PitchDescriptionModel
229° ACME 2 Pitch Thread Rolls, Set of 2 TRA-2P
329° ACME 3 Pitch Thread Rolls, Set of 2 TRA-3P
429° ACME 4 Pitch Thread Rolls, Set of 2 TRA-4P
529° ACME 5 Pitch Thread Rolls, Set of 2 TRA-5P
629° ACME 6 Pitch Thread Rolls, Set of 2 TRA-6P
829° ACME 8 Pitch Thread Rolls, Set of 2 TRA-8P
1029° ACME 10 Pitch Thread Rolls, Set of 2 TRA-10P
1229° ACME 12 Pitch Thread Rolls, Set of 2 TRA-12P
1429° ACME 14 Pitch Thread Rolls, Set of 2 TRA-14P
1629° ACME 16 Pitch Thread Rolls, Set of 2 TRA-16P
1829° ACME 18 Pitch Thread Rolls, Set of 2 TRA-18P
PitchDescriptionModel
229° Stub ACME 2 Pitch Thread Rolls, Set of 2 TRSA-2P
329° Stub ACME 3 Pitch Thread Rolls, Set of 2 TRSA-3P
429° Stub ACME 4 Pitch Thread Rolls, Set of 2 TRSA-4P
529° Stub ACME 5 Pitch Thread Rolls, Set of 2 TRSA-5P
629° Stub ACME 6 Pitch Thread Rolls, Set of 2 TRSA-6P
829° Stub ACME 8 Pitch Thread Rolls, Set of 2 TRSA-8P
1029° Stub ACME 10 Pitch Thread Rolls, Set of 2 TRSA-10P
1229° Stub ACME 12 Pitch Thread Rolls, Set of 2 TRSA-12P
1429° Stub ACME 14 Pitch Thread Rolls, Set of 2 TRSA-14P
1629° Stub ACME 16 Pitch Thread Rolls, Set of 2 TRSA-16P
1829° Stub ACME 18 Pitch Thread Rolls, Set of 2 TRSA-18P
Stub ACME Modified-1 or Stub ACME Modified-2PitchDescriptionModel
Stub ACME Modified-1 33 pitch thread rolls for Stub ACME Modified-1 , Set of 2 TRSAM1-3P
Stub ACME Modified-244 pitch thread rolls Stub ACME Modified-2 s, Set of 2 TRSAM2-4P
Stub ACME Modified-255 pitch thread rolls Stub ACME Modified-2 s, Set of 2 TRSAM2-5P
Stub ACME Modified-21212 pitch thread rolls Stub ACME Modified-2, Set of 2 TRSAM2-12P
ISO Metric Series

“TRM” thread rolls inspect the functional fit of machine threaded parts with ISO Metric 60 “V” thread forms. Additional pitches are available. Please contact customer service for more information.

Pitch in millimetersDescriptionModel
4External ISO Metric 60 “V” 4 mm Pitch Thread Rolls, Set of 2TRME-4P
External ISO Metric 60 “V” 3½ mm Pitch Thread Rolls, Set of 2TRME-3.5P
3External ISO Metric 60 “V” 3 mm Pitch Thread Rolls, Set of 2TRME-3P
External ISO Metric 60 “V” 2½ mm Pitch Thread Rolls, Set of 2TRME-2.5P
2External ISO Metric 60 “V” 2 mm Pitch Thread Rolls, Set of 2TRME-2P
External ISO Metric 60 “V” 1¾ mm Pitch Thread Rolls, Set of 2TRME-15P
External ISO Metric 60 “V” 1½ mm Pitch Thread Rolls, Set of 2TRME-1.5P
1External ISO Metric 60 “V” 1 mm Pitch Thread Rolls, Set of 2TRME-1P
Pitch in millimetersDescriptionModel
4Internal ISO Metric 60 “V” 4 mm Pitch Thread Rolls, Set of 2TRMI-4P
Internal ISO Metric 60 “V” 3½ mm Pitch Thread Rolls, Set of 2TRMI-3.5P
3Internal ISO Metric 60 “V” 3 mm Pitch Thread Rolls, Set of 2TRMI-3P
Internal ISO Metric 60 “V” 2½ mm Pitch Thread Rolls, Set of 2TRMI-2.5P
2Internal ISO Metric 60 “V” 2 mm Pitch Thread Rolls, Set of 2TRMI-2P
Internal ISO Metric 60 “V” 1¾ mm Pitch Thread Rolls, Set of 2TRMI-15P
Internal ISO Metric 60 “V” 1½ mm Pitch Thread Rolls, Set of 2TRMI-1.5P
1Internal ISO Metric 60 “V” 1 mm Pitch Thread Rolls, Set of 2TRMI-1P
National 7° x 45° Buttress Series

“TRM” thread rolls inspect the functional fit of machine threaded parts with ISO Metric 60 “V” thread forms. Additional pitches are available. Please contact customer service for more information.

PitchDescriptionModel
2National 7° x 45° Buttress 2 Pitch Thread Rolls, Set of 2 TRB745-2P
3National 7° x 45° Buttress 3 Pitch Thread Rolls, Set of 2 TRB745-3P
National 7° x 45° Buttress 3½ Pitch Thread Rolls, Set of 2 TRB745-3.5P
4National 7° x 45° Buttress 4 Pitch Thread Rolls, Set of 2 TRB745-4P
6National 7° x 45° Buttress 6 Pitch Thread Rolls, Set of 2 TRB745-6P
8National 7° x 45° Buttress 8 Pitch Thread Rolls, Set of 2 TRB745-8P
10National 7° x 45° Buttress 10 Pitch Thread Rolls, Set of 2 TRB745-10P
12National 7° x 45° Buttress 12 Pitch Thread Rolls, Set of 2 TRB745-12P
16National 7° x 45° Buttress 16 Pitch Thread Rolls, Set of 2 TRB745-16P
Trapezoidal

“TRT” thread rolls inspect the functional fit of machine threaded parts with trapezoidal thread forms. Additional pitches are available. Please contact customer service for more information.

Pitch in millimetersDescriptionModel
2Trapezoidal 2 mm Pitch Thread Rolls, Set of 2TRT-2P
3Trapezoidal 3 mm Pitch Thread Rolls, Set of 2TRT-3P
4Trapezoidal 4 mm Pitch Thread Rolls, Set of 2TRT-4P
5Trapezoidal 5 mm Pitch Thread Rolls, Set of 2TRT-5P
6Trapezoidal 6 mm Pitch Thread Rolls, Set of 2TRT-6P
8Trapezoidal 8 mm Pitch Thread Rolls, Set of 2TRT-8P
9Trapezoidal 9 mm Pitch Thread Rolls, Set of 2TRT-9P
10Trapezoidal 10 mm Pitch Thread Rolls, Set of 2TRT-10P
12Trapezoidal 12 mm Pitch Thread Rolls, Set of 2TRT-12P
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