Mountz MTBN - Break-Over Wrench

See More Torque Wrenches

This product has been replaced by the TBX Break Over

A preset production torque wrench with flexibility to adapt to different applications with ability to change different head options. Breaks over upon reaching preset torque and reset automatically.

Torque Ranges from 1.8 - 18 lbf.in to 354 - 1770 lbf.in

The Mountz MTBN - Break-Over Wrench is a preset production torque wrench with flexibility to adapt to different fastening applications as it is compatible with different head options.The unique break-over mechanism, provides an operator ample time to react once the target torque is reached and to stop applying any additional force to the fastener. Break-over torque wrenches improve control of the fastening process by reducing the risk of both over and under tightening

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Features
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A preset production torque wrench with flexibility to adapt to different applications with ability to change different head options. Breaks over upon reaching preset torque and reset automatically.
Tamper-proof internal adjustment. No external adjustment scale - must be preset using a torque analyzer.
All models are are fitted with “double positive” torque adjustment locking system to prevent tampering.
Compact and well balanced. Ideal for use in restricted areas.
Interchangeable Heads for all models are available.
MTBN2 & MTBN10 are ESD compliant.

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Torque Ranges
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Model	Item #	lbf.in	N.m	kgf.cm
MTBN2	020314	1.8 - 18	0.2 - 2	2 - 20
MTBN10	020315	9 - 89	1 - 10	10 - 102
MTBN25*	020491	44 - 221	5 - 25	51 - 255
MTBN25*	020333	44 - 221	5 - 25	51 - 255
MTBN65*	020631	89 - 575	10 - 65	102 - 663
MTBN65*	020353	89 - 575	10 - 65	102 - 663
MTBN135*	020632	177 - 1194	20 - 135	204 - 1377
MTBN135*	020354	177 - 1194	20 - 135	204 - 1377
MTBN200*	020642	354 - 1770	40 - 200	408- 2039

Model	Item #	Drive Type	Wt. oz.	Wt. gm	Break
MTBN2	020314	Captive Pin	3.9	110	20° or 90°
MTBN10	020315	Captive Pin	4.6	130	20° or 90°
MTBN25*	020491	16mm Spigot	14.3	405	20°
MTBN25*	020333	Dovetail	14.3	405	20°
MTBN65*	020631	16mm Spigot	26.5	750	20°
MTBN65*	020353	Dovetail	26.5	750	20°
MTBN135*	020632	16mm Spigot	36.4	1030	20°
MTBN135*	020354	Dovetail	36.4	1030	20°
MTBN200*	020642	16mm Spigot	49.4	1400	20°

*MTBN 25, 65, 135 operate in single direction (clockwise).

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Break Diagrams
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MTBN2 and MTBN10 are supplied with a removable collar, which restricts the break angle to 20°. If the collar is removed, the break angle increases to 90°

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Interchangeable Heads (Captive Pin Models)
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For use with Capacitive Pin Models (MTBN2, MTBN10)

American

Item #	Size	Cap.	Item #	Size	Cap.
020415	5/32 "	10 N.m	020404	9/16 "	10 N.m
020411	3/16 "	10 N.m	020409	5/8 "	10 N.m
020414	7/32 "	10 N.m	020418	11/16 "	10 N.m
020401	1/4 "	10 N.m	020397	3/4 "	10 N.m
020402	5/16 "	10 N.m	022225	13/16 "	10 N.m
020403	3/8 "	10 N.m	020423	7/8 "	10 N.m
020407	7/16 "	10 N.m	020425	15/16 "	10 N.m
020408	1/2 "	10 N.m	022475	1 "	10 N.m

Metric

Item #	Size	Cap.	Item #	Size	Cap.
022000	3.2	10 N.m	020432	15	10 N.m
020429	5	10 N.m	022070	16	10 N.m
022015	5.5	10 N.m	022075	17	10 N.m
020100%	6	10 N.m	022080	18	10 N.m
022025	7	10 N.m	022085	19	10 N.m
020427	8	10 N.m	022090	20	10 N.m
022035	9	10 N.m	022095	21	10 N.m
020508	10	10 N.m	022100	22	10 N.m
022045	11	10 N.m	022105	23	10 N.m
020431	12	10 N.m	022110	24	10 N.m
022055	13	10 N.m	022115	25	10 N.m
020100%	14	10 N.m

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Box End

American

Item #	Size	Cap.	Item #	Size	Cap.
022400	5/32 "	10 N.m	022440	9/16 "	10 N.m
020405*	3/16 "	10 N.m	020417	5/8 "	10 N.m
022410	7/32 "	10 N.m	021116	11/16 "	10 N.m
020396	1/4 "	10 N.m	022455	3/4 "	10 N.m
020424	5/16 "	10 N.m	022460	13/16 "	10 N.m
022425	3/8 "	10 N.m	022465	7/8 "	10 N.m
020422	7/16 "	10 N.m	022470	15/16 "	10 N.m
020421	1/2 "	10 N.m	022475	1 "	10 N.m

Metric

Item #	Size	Cap.	Item #	Size	Cap.
022250	3.2	10 N.m	022315	15	10 N.m
020528	5	10 N.m	022320	16	10 N.m
022265	5.5	10 N.m	022325	17	10 N.m
022270	6	10 N.m	022330	18	10 N.m
022275	7	10 N.m	022335	1	10 N.m
022280	8	10 N.m	022340	20	10 N.m
022285	9	10 N.m	022345	21	10 N.m
022290	10	10 N.m	022350	22	10 N.m
022295	11	10 N.m	022355	23	10 N.m
022300	12	10 N.m	022360	24	10 N.m
022305	13	10 N.m	022365	25	10 N.m
022310	14	10 N.m

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Flare End

American

Item #	Size	Cap.	Item #	Size	Cap.
022600	1/4 "	10 N.m	022625	9/16 "	10 N.m
020426	5/16 "	10 N.m	020463	5/8 "	10 N.m
020420	3/8 "	10 N.m	022635	3/4 "	10 N.m
020419	7/16 "	10 N.m	022640	7/8 "	10 N.m
022620	1/2 "	10 N.m	022645	1 "	10 N.m

Metric

Item #	Size	Cap.	Item #	Size	Cap.
022505	8	10 N.m	022540	15	10 N.m
022510	9	10 N.m	022545	16	10 N.m
022515	10	10 N.m	022550	17	10 N.m
022520	11	10 N.m	022555	19	10 N.m
022525	12	10 N.m	022560	22	10 N.m
022530	13	10 N.m	020496	23	10 N.m
022535	14	10 N.m	022565	24	10 N.m

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Ratchet, Fixed and Blank Ends


Ratchet End Item # 020399 Square Drive Size: 1/4"	Fixed End Item # 020395 Square Drive Size: 1/4"	Blank End Item # 020400

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Hex Key Adapters

Allows the use of hexagon keys to be used with MTBN2 and MTBN10 wrenches. Hex keys can be inserted into adapter and secured with a locking screw.

Note! Hex keys are not included with the adapter.

Item #	020619	020646	020614
Hex Key Size	1.0 - 2.5	3.0 - 5.0	6.0 - 8.0

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Interchangeable Heads (16mm Spigot Models) line

For use with 16mm Spigot Models (MTBN25, MTBN65, MTBN135, MTBN200)

Open End

American

Item #	Size	Cap.	Item #	Size	Cap.
040047	1/4 "	7	040073	7/8 "	230
040048	5/16 "	13	040055	15/16 "	281
040072	3/8 "	21	040305	1"	330
040049	7/16 "	32	040306	1 1/16 "	330
040050	1/2 "	48	040327	1 1/8 "	330
040051	9/16 "	67	040716	1 3/16 "	330
040052	5/8 "	90	040315	1 1/4 "	330
040053	11 / 16 "	118	060375	1 5/16 "	330
040054	3/4 "	150	065433	1 1/2 "	330
040304	13 / 16 "	187

Metric

Item #	Size	Cap.	Item #	Size	Cap.
040407	7	9	040419	19	149
040410	8	13	040420	20	172
040411	9	19	040421	21	196
040412	10	25	040422	22	225
040413	11	32	040423	23	255
040414	12	41	040424	24	287
040415	13	51	040425	25	322
040416	14	63	040409	26	330
040417	15	77	040110	27	330
040105	16	92	040650	30	330
040106	17	107	040107	32	330
040418	18	128	040111	36	330

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Box End

American

Item #	Size	Cap.	Item #	Size	Cap.
040056	1/4"	25	040064	3/4"	305
040057	5/16"	35	040065	13/16"	330
040058	3/8"	42	040066	7/8"	330
040059	7/16"	73	040307	15/16"	330
040060	1/2"	115	040067	1/"	330
040061	9/16"	170	040308	1 1/16"	330
040062	5/8"	226	069712	1 1/8"	330
040063	11/16"	260

Metric

Item #	Size	Cap.	Item #	Size	Cap.
040476	7	25	040435	17	201
040426	8	35	040436	18	230
040427	9	45	040437	19	261
040100%	10	52	040438	20	294
040429	11	73	040439	21	330
040100%	12	89	040440	22	330
040431	13	107	040441	23	330
040432	14	128	040442	24	330
040433	15	150	040443	25	330
040434	16	175	040478	27	330

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Flare End

Metric

Item #	Size	Cap.	Item #	Size	Cap.
040530	7	4	040450	16	46
040528	8	7	040451	17	53
040533	9	9	040452	18	65
040444	10	12	040229	19	74
040445	11	16	040453	20	86
040446	12	25	040454	21	100
040447	13	28	040455	22	112
040448	14	31	040457	24	143
040449	15	38	040555	27	150

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Ratchet, Fixed and Blank Ends


Ratchet End Item # 040039G Square Drive Size: 3/8" Capactiy: 100 N.m	Ratchet End Item # 040040G Square Drive Size: 1/2" Capactiy: 330 N.m	Fixed End Item # 040085 Square Drive Size: 3/8" Capactiy: 100 N.m	Item # 040086 Square Drive Size: 1/2" Capactiy: 330 N.m Blank End Item # 040069