Functional Size Gages

Functional Size Inspection

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).

Gagemaker RG 7000 on Part in Lathe 300x247 - Functional Size Gages

External Functional Size

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.

External Functional Size Thread Inspection Gages

Range	Indicator Resolution	Indicator Travel	Description	Model
⅝” – 4” (15.9 mm – 101.6 mm)	.0005”	½”	External Functional Size Thread Roll Gage	RG-7000
⅝” – 4” (15.9 mm – 101.6 mm)	.01 mm	10 mm	External Functional Size Thread Roll Gage with metric indicator	RG-7000-M
4” – 8” (101.6 mm – 203.2 mm)	.0005”	½”	External Functional Size Thread Roll Gage	RG-7001
4” – 8” (101.6 mm – 203.2 mm)	.01 mm	10 mm	External Functional Size Thread Roll Gage with metric indicator	RG-7001-M
8” – 12” (203.2 mm – 304.8 mm)	.0005”	½”	External Functional Size Thread Roll Gage	RG-7002
8” – 12” (203.2 mm – 304.8 mm)	.01 mm	10 mm	External Functional Size Thread Roll Gage with metric indicator	RG-7002-M
12” – 16” (304.8 mm – 406.4 mm)	.0005”	½”	External Functional Size Thread Roll Gage	RG-7003
12” – 16” (304.8 mm – 406.4 mm)	.01 mm	10 mm	External Functional Size Thread Roll Gage with metric indicator	RG-7003-M
16” – 20” (406.4 mm – 508 mm)	.0005”	½”	External Functional Size Thread Roll Gage	RG-7004
16” – 20” (406.4 mm – 508 mm)	.01 mm	10 mm	External Functional Size Thread Roll Gage with metric indicator	RG-7004-M
20” – 24” (508 mm – 609.6 mm)	.0005”	½”	External Functional Size Thread Roll Gage	RG-7005
20” – 24” (508 mm – 609.6 mm)	.01 mm	10 mm	External Functional Size Thread Roll Gage with metric indicator	RG-7005-M

Gagemaker PG 6000 on Part 300x207 - Functional Size Gages

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.

Internal Functional Size Thread Inspection Gages

Range	Indicator Resolution	Indicator Travel	Reach	Description	Model
1½” – 9” (38 mm – 228.6 mm)	.0005”	½”	2½”	Internal Functional Size Thread Roll Gage	PG-6000
1½” – 9” (38 mm – 228.6 mm)	.0001”	½”	2½”	Internal Functional Size Thread Roll Gage with high resolution indicator	PG-6000-1
1½” – 9” (38 mm – 228.6 mm)	.01 mm	10 mm	63.5 mm	Internal Functional Size Thread Roll Gage with metric indicator	PG-6000-M
9” – 16” (228.6 mm – 406.4 mm)	.0005”	½”	2½”	Internal Functional Size Thread Roll Gage	PG-6001
9” – 16” (228.6 mm – 406.4 mm)	.0001”	½”	2½”	Internal Functional Size Thread Roll Gage with high resolution indicator	PG-6001-1
9” – 16” (228.6 mm – 406.4 mm)	.01 mm	10 mm	63.5 mm	Internal Functional Size Thread Roll Gage with metric indicator	PG-6001-M
16” – 24” (406.4 mm – 609.6 mm)	.0005”	½”	2½”	Internal Functional Size Thread Roll Gage	PG-6002
16” – 24” (406.4 mm – 609.6 mm)	.0001”	½”	2½”	Internal Functional Size Thread Roll Gage with high resolution indicator	PG-6002-1
16” – 24” (406.4 mm – 609.6 mm)	.01 mm	10 mm	63.5 mm	Internal Functional Size Thread Roll Gage with metric indicator	PG-6002-M
24″ – 32″ (609.6 mm – 812.8 mm)	.0005”	½”	2½”	Internal Functional Size Thread Roll Gage	PG-6003
24″ – 32″ (609.6 mm – 812.8 mm)	.0001”	½”	2½”	Internal Functional Size Thread Roll Gage with high resolution indicator	PG-6003-1
24″ – 32″ (609.6 mm – 812.8 mm)	.01 mm	10 mm	63.5 mm	Internal Functional Size Thread Roll Gage with metric indicator	PG-6003-M

Gagemaker DPG 6500 Inspecting - Functional Size Gages

Deep Bore Internal Functional Size

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.

Internal Deep Bore Functional Size Gages

Pitches	Diameters	Reach	Description	Model
4 Pitch and finer	2.970” – 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

Internal Deep Bore Functional Size Gage Accessories

Reach	Diameters	Description	Model
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 Assembly	DPG-18R
24″ (609.6 mm)	–	Handle Extension Assembly	DPG-24R
–	3 – 4.30” (76.2 – 109.22 mm)	Diameter Extension Arms	DPG-1
–	4.30 – 5.10” (109.22 – 129.54mm)	Diameter Extension Arms	DPG-2
–	5.10 – 5.90” (129.54 – 149.86 mm)	Diameter Extension Arms	DPG-3
–	5.90 – 6.70” (149.86 – 170.18 mm)	Diameter Extension Arms	DPG-4
–	6.70 – 7.50” (170.18 – 190.5 mm)	Diameter Extension Arms	DPG-5
–	7.50 – 8.30” (190.5 – 210.82 mm)	Diameter Extension Arms	DPG-6
–	8.30 – 9.10” (210.82 – 231.14 mm)	Diameter Extension Arms	DPG-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.

External UN Thread Rolls, Diameters (1½” & Larger)

Pitch	Description	Model
4	External 4 pitch UN/60° “V” Thread Rolls, Set of 2	TRVE-4P
5	External 5 pitch UN/60° “V” Thread Rolls, Set of 2	TRVE-5P
6	External 6 pitch UN/60° “V” Thread Rolls, Set of 2	TRVE-6P
8	External 8 pitch UN/60° “V” Thread Rolls, Set of 2	TRVE-8P
10	External 10 pitch UN/60° “V” Thread Rolls, Set of 2	TRVE-10P
12	External 12 pitch UN/60° “V” Thread Rolls, Set of 2	TRVE-12P
14	External 14 pitch UN/60° “V” Thread Rolls, Set of 2	TRVE-14P
16	External 16 pitch UN/60° “V” Thread Rolls, Set of 2	TRVE-16P
18	External 18 pitch UN/60° “V” Thread Rolls, Set of 2	TRVE-18P
20	External 20 pitch UN/60° “V” Thread Rolls, Set of 2	TRVE-20P

Internal UN Thread Rolls, Diameters (1½” & Larger)

Pitch	Description	Model
4	Internal 4 pitch UN/60° “V” Thread Rolls, Set of 2	TRVI-4P
5	Internal 5 pitch UN/60° “V” Thread Rolls, Set of 2	TRVI-5P
6	Internal 6 pitch UN/60° “V” Thread Rolls, Set of 2	TRVI-6P
8	Internal 8 pitch UN/60° “V” Thread Rolls, Set of 2	TRVI-8P
10	Internal 10 pitch UN/60° “V” Thread Rolls, Set of 2	TRVI-10P
12	Internal 12 pitch UN/60° “V” Thread Rolls, Set of 2	TRVI-12P
14	Internal 14 pitch UN/60° “V” Thread Rolls, Set of 2	TRVI-14P
16	Internal 16 pitch UN/60° “V” Thread Rolls, Set of 2	TRVI-16P
18	Internal 18 pitch UN/60° “V” Thread Rolls, Set of 2	TRVI-18P
20	Internal 20 pitch UN/60° “V” Thread Rolls, Set of 2	TRVI-20P

ACME and Stub ACME thread forms

“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.

ACME Thread Rolls, Diameters (1½” & Larger)

Pitch	Description	Model
2	29° ACME 2 Pitch Thread Rolls, Set of 2	TRA-2P
3	29° ACME 3 Pitch Thread Rolls, Set of 2	TRA-3P
4	29° ACME 4 Pitch Thread Rolls, Set of 2	TRA-4P
5	29° ACME 5 Pitch Thread Rolls, Set of 2	TRA-5P
6	29° ACME 6 Pitch Thread Rolls, Set of 2	TRA-6P
8	29° ACME 8 Pitch Thread Rolls, Set of 2	TRA-8P
10	29° ACME 10 Pitch Thread Rolls, Set of 2	TRA-10P
12	29° ACME 12 Pitch Thread Rolls, Set of 2	TRA-12P
14	29° ACME 14 Pitch Thread Rolls, Set of 2	TRA-14P
16	29° ACME 16 Pitch Thread Rolls, Set of 2	TRA-16P
18	29° ACME 18 Pitch Thread Rolls, Set of 2	TRA-18P

Stub ACME Thread Rolls, Diameters (1½” & Larger)

Pitch	Description	Model
2	29° Stub ACME 2 Pitch Thread Rolls, Set of 2	TRSA-2P
3	29° Stub ACME 3 Pitch Thread Rolls, Set of 2	TRSA-3P
4	29° Stub ACME 4 Pitch Thread Rolls, Set of 2	TRSA-4P
5	29° Stub ACME 5 Pitch Thread Rolls, Set of 2	TRSA-5P
6	29° Stub ACME 6 Pitch Thread Rolls, Set of 2	TRSA-6P
8	29° Stub ACME 8 Pitch Thread Rolls, Set of 2	TRSA-8P
10	29° Stub ACME 10 Pitch Thread Rolls, Set of 2	TRSA-10P
12	29° Stub ACME 12 Pitch Thread Rolls, Set of 2	TRSA-12P
14	29° Stub ACME 14 Pitch Thread Rolls, Set of 2	TRSA-14P
16	29° Stub ACME 16 Pitch Thread Rolls, Set of 2	TRSA-16P
18	29° Stub ACME 18 Pitch Thread Rolls, Set of 2	TRSA-18P

Stub ACME Modified-1 &Stub ACME Modified-2 Thread Rolls

Stub ACME Modified-1 or Stub ACME Modified-2	Pitch	Description	Model
Stub ACME Modified-1	3	3 pitch thread rolls for Stub ACME Modified-1 , Set of 2	TRSAM1-3P
Stub ACME Modified-2	4	4 pitch thread rolls Stub ACME Modified-2 s, Set of 2	TRSAM2-4P
Stub ACME Modified-2	5	5 pitch thread rolls Stub ACME Modified-2 s, Set of 2	TRSAM2-5P
Stub ACME Modified-2	12	12 pitch thread rolls Stub ACME Modified-2, Set of 2	TRSAM2-12P

ISO Metric Thread Rolls

“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.

External ISO Metric Thread Rolls, Diameters (38.1mm & Larger)

Pitch in millimeters	Description	Model
4	External ISO Metric 60 “V” 4 mm Pitch Thread Rolls, Set of 2	TRME-4P
3½	External ISO Metric 60 “V” 3½ mm Pitch Thread Rolls, Set of 2	TRME-3.5P
3	External ISO Metric 60 “V” 3 mm Pitch Thread Rolls, Set of 2	TRME-3P
2½	External ISO Metric 60 “V” 2½ mm Pitch Thread Rolls, Set of 2	TRME-2.5P
2	External ISO Metric 60 “V” 2 mm Pitch Thread Rolls, Set of 2	TRME-2P
1¾	External ISO Metric 60 “V” 1¾ mm Pitch Thread Rolls, Set of 2	TRME-15P
1½	External ISO Metric 60 “V” 1½ mm Pitch Thread Rolls, Set of 2	TRME-1.5P
1	External ISO Metric 60 “V” 1 mm Pitch Thread Rolls, Set of 2	TRME-1P

Internal ISO Metric Thread Rolls, Diameters (38.1mm & Larger)

Pitch in millimeters	Description	Model
4	Internal ISO Metric 60 “V” 4 mm Pitch Thread Rolls, Set of 2	TRMI-4P
3½	Internal ISO Metric 60 “V” 3½ mm Pitch Thread Rolls, Set of 2	TRMI-3.5P
3	Internal ISO Metric 60 “V” 3 mm Pitch Thread Rolls, Set of 2	TRMI-3P
2½	Internal ISO Metric 60 “V” 2½ mm Pitch Thread Rolls, Set of 2	TRMI-2.5P
2	Internal ISO Metric 60 “V” 2 mm Pitch Thread Rolls, Set of 2	TRMI-2P
1¾	Internal ISO Metric 60 “V” 1¾ mm Pitch Thread Rolls, Set of 2	TRMI-15P
1½	Internal ISO Metric 60 “V” 1½ mm Pitch Thread Rolls, Set of 2	TRMI-1.5P
1	Internal ISO Metric 60 “V” 1 mm Pitch Thread Rolls, Set of 2	TRMI-1P

National 7° x 45° Buttress Series Thread Rolls, Diameter (1½” & Larger)

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

Trapezoidal Thread Forms

“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.

Trapezoidal Thread Rolls

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