Name: Torque Master Tools Private Limited
Address: E-14 & E-15, Industrial Focal Point, Derabassi, Punjab, 140507, IN
Telephone: +91 1762 498014

Torque wrench overview

A torque wrench is used to set the torque applied to a fastener, such as a nut or bolt, precisely. It allows the operator to measure the rotational force applied so that it can be matched to the specification, ensuring the correct tension and loading of every part of the joint.

Torque wrenches are used wherever the tightness of screws and bolts is crucial. The Torque Master range covers six families of torque wrenches, together with fittings and square drivers for the interchangeable head models. Each family is summarised below. Select a family to view its models and technical data.

Special versions

Torque Master production type (fixed setting) torque wrench — **Production type (fixed setting).** Torque wrenches are also available in preset (fixed setting) versions for repetitive production and assembly operations. Presetting prevents tampering with the torque setting during assembly and saves considerable time.

Torque Master open jaw type torque wrench — **Open jaw type.** Torque wrenches fitted with an open jaw are available against specific orders. They are suited to torquing nuts where vertical clearance is restricted and a socket and conventional torque wrench cannot be used.

WhatsApp enquiry +91 1762 498014

Industrial Torque Wrenches: Standard

Rugged adjustable click-type torque wrenches for general industrial assembly and maintenance: 17 models from TM 10 to TM 3000, covering 3 to 4050 N·m in 3/8" to 1" square drive. Supplied in a blow-moulded case up to TM 750/750R and a steel case above TM 750/R. Also available in production type (fixed setting) versions.

In the box: torque wrench with its unique serial number, protective case, calibration certificate and instruction manual, plus a tommy bar with TM 400 and above. How to set and use your torque wrench.

Torque Master TM series standard torque wrench dimension drawing showing head depth A, head width B and overall length L — Dimensions: A = head depth, B = head width, L = overall length (approx.), as printed in the catalogue drawing.

TM 10 to TM 3000

TM 10 to TM 3000
Model	Square drive	N·m		lbf·ft		kgf·m		lbf·in	Head depth (A)	Head width (B)	Overall length approx. (L)	Weight (kg)
Model	Square drive	Range	L.C.	Range	L.C.	Range	L.C.	Range	Head depth (A)	Head width (B)	Overall length approx. (L)	Weight (kg)
TM 10	3/8”	3-14	0.5	2-10	0.5	0.3-1.4	0.1	20-120	33 mm	23 mm	310 mm	0.60
TM 25	3/8”	5-35	2	5-25	1	0.5-3.5	0.2	40-300	33 mm	23 mm	340 mm	0.70
TM 50	½”	10-70	2	8-50	2	1-7	0.2	100-600	39 mm	28 mm	450 mm	0.90
TM 100	½”	20-135	5	16-100	2	2-14	0.5	210-1200	42 mm	28 mm	550 mm	1.20
TM 160	½”	40-225	5	40-160	5	4-23	1	450-2000	48 mm	32 mm	610 mm	2.20
TM 250	½”	60-340	10	50-250	5	6-35	1	600-3000	48 mm	32 mm	770 mm	2.70
TM 300	¾” / ½”	80-400	10	60-300	5	8-40	1	720-3600	55 mm	32 mm	780 mm	2.80
TM 400	¾”	130-540	10	100-400	10	14-56	1	1200-4800	62 mm	48 mm	1025 mm	6.50
TM 500	¾”	135-675	15	100-500	10	14-70	2	1200-6000	62 mm	48 mm	1030 mm	6.60
TM 600	¾”	200-815	15	150-600	10	20-84	2	1800-7200	62 mm	48 mm	1035 mm	6.70
TM 750	¾”	255-1015	20	180-750	15	25-105	2	2160-9000	62 mm	48 mm	1120 mm	7.70
TM 750s	1”	255-1015	20	180-750	15	25-105	2	2160-9000	67 mm	48 mm	1120 mm	7.75
TM 1000	1”	540-1380	40	400-1000	20	55-140	5	5000-12000	84 mm	56 mm	1370 mm	13.80
TM 1400	1”	850-1900	50	650-1400	25	90-195	5	7800-16800	84 mm	70 mm	1410 mm	15.50
TM 2000	1”	1350-2700	50	1000-2000	50	135-275	5	12000-24000	84 mm	70 mm	1550 mm	19.00
TM 2500	1”	1550-3450	50	1150-2500	50	160-350	5	13800-30000	84 mm	70 mm	1650 mm	22.00
TM 3000	1”	1850-4050	50	1350-3000	50	190-415	5	16200-36000	84 mm	70 mm	1650 mm	22.00

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Also available in preset (fixed setting) versions for repetitive production and assembly operations. L.C. = least count. Specifications are subject to change without prior notice.

WhatsApp enquiry +91 1762 498014

Industrial Torque Wrenches: Ratchet Type

The same 17 capacities with a built-in reversible ratchet head and a 6° swing arc for working in confined areas: TM 10R to TM 3000R, 3 to 4050 N·m.

In the box: torque wrench with its unique serial number, protective case, calibration certificate and instruction manual, plus a tommy bar with TM 400R and above. How to set and use your torque wrench.

Torque Master TM R series ratchet type torque wrench dimension drawing showing head depth A, head width B and overall length L — Dimensions: A = head depth, B = head width, L = overall length (approx.), as printed in the catalogue drawing.

TM 10R to TM 3000R

TM 10R to TM 3000R
Model	Square drive	N·m		lbf·ft		kgf·m		lbf·in	Swing arc	Head depth (A)	Head width (B)	Overall length approx. (L)	Weight (kg)
Model	Square drive	Range	L.C.	Range	L.C.	Range	L.C.	Range	Swing arc	Head depth (A)	Head width (B)	Overall length approx. (L)	Weight (kg)
TM 10R	3/8”	3-14	0.5	2-10	0.5	0.3-1.4	0.1	20-120	6°	39 mm	29 mm	320 mm	0.60
TM 25R	3/8”	5-35	2	5-25	1	0.5-3.5	0.2	40-300	6°	39 mm	29 mm	350 mm	0.70
TM 50R	½”	10-70	2	8-50	2	1-7	0.2	100-600	6°	42 mm	43 mm	460 mm	0.90
TM 100R	½”	20-135	5	16-100	2	2-14	0.5	210-1200	6°	48 mm	43 mm	560 mm	1.20
TM 160R	½”	40-225	5	40-160	5	4-23	1	450-2000	6°	48 mm	43 mm	620 mm	2.20
TM 250R	½”	60-340	10	50-250	5	6-35	1	600-3000	6°	48 mm	43 mm	780 mm	2.70
TM 300R	¾” / ½”	80-400	10	60-300	5	8-40	1	720-3600	6°	55 mm	43 mm	785 mm	2.80
TM 400R	¾”	130-540	10	100-400	10	14-56	1	1200-4800	6°	62 mm	67 mm	1095 mm	7.30
TM 500R	¾”	135-675	15	100-500	10	14-70	2	1200-6000	6°	62 mm	67 mm	1100 mm	7.40
TM 600R	¾”	200-815	15	150-600	10	20-84	2	1800-7200	6°	62 mm	67 mm	1105 mm	7.50
TM 750R	¾”	255-1015	20	180-750	15	25-105	2	2160-9000	6°	62 mm	67 mm	1200 mm	8.50
TM 750sR	1”	255-1015	20	180-750	15	25-105	2	2160-9000	6°	67 mm	67 mm	1200 mm	8.55
TM 1000R	1”	540-1380	40	400-1000	20	55-140	5	5000-12000	6°	84 mm	95 mm	1470 mm	17.50
TM 1400R	1”	850-1900	50	650-1400	25	90-195	5	7800-16800	6°	84 mm	95 mm	1510 mm	18.80
TM 2000R	1”	1350-2700	50	1000-2000	50	135-275	5	12000-24000	6°	84 mm	95 mm	1650 mm	21.00
TM 2500R	1”	1550-3450	50	1150-2500	50	160-350	5	13800-30000	6°	84 mm	95 mm	1750 mm	25.00
TM 3000R	1”	1850-4050	50	1350-3000	50	190-415	5	16200-36000	6°	84 mm	95 mm	1750 mm	25.00

Scroll sideways or use the arrows to see all columns.

L.C. = least count. Specifications are subject to change without prior notice.

WhatsApp enquiry +91 1762 498014

Click Type Micrometer Torque Wrenches (TMT)

Micrometer-adjustable click-type torque wrenches for precise work on smaller fasteners.

Dual scale: N·m and lbf·in (TMT 10 to TMT 25), N·m and lbf·ft (TMT 50 to TMT 340).
Positive lock with a spring-loaded pull-down lock ring.
Easy-to-read torque scales.
1/4", 3/8" and 1/2" square drive with quick-release feature for easy socket change and secure socket retention.
72-tooth ratchet head with a 5° swing arc.
±3% accuracy, better than the ±4% required by ISO 6789:2017.
Calibrated in the clockwise direction only.

Torque Master TMT series click type torque wrench dimension drawing, top and side views, showing head width B, head depth A and overall length L — Dimensions: A = head depth, B = head width, L = overall length (approx.), as printed in the catalogue drawing.

Models with secondary scale in lbf·in

TMT 10 to TMT 25
Model	Square drive	N·m		lbf·in		Head depth (A) (mm)	Head width (B) (mm)	Gear teeth	Swing arc	Weight (kg)	Overall length approx. (L) (mm)
Model	Square drive	Range	L.C.	Range	L.C.	Head depth (A) (mm)	Head width (B) (mm)	Gear teeth	Swing arc	Weight (kg)	Overall length approx. (L) (mm)
TMT 10	1/4”	2-10	0.1	22.13-92.93	0.88	24	27	72	5°	0.35	235.00
TMT 15	1/4”	3-15	0.1	30.97-137.18	0.88	24	27	72	5°	0.38	250.00
TMT 25	3/8”	5-25	0.1	48.68-225.69	0.88	32	30	72	5°	0.40	275.00

Swipe the table sideways to see all columns.

Models with secondary scale in lbf·ft

TMT 50 to TMT 340
Model	Square drive	N·m		lbf·ft		Head depth (A) (mm)	Head width (B) (mm)	Gear teeth	Swing arc	Weight (kg)	Overall length approx. (L) (mm)
Model	Square drive	Range	L.C.	Range	L.C.	Head depth (A) (mm)	Head width (B) (mm)	Gear teeth	Swing arc	Weight (kg)	Overall length approx. (L) (mm)
TMT 50	3/8”	10-50	0.25	8.29-37.8	0.184	32	30	72	5°	1.00	360.00
TMT 50S	1/2”	10-50	0.25	8.29-37.8	0.184	40	42	72	5°	1.15	385.00
TMT 100	1/2”	20-100	0.5	16.59-75.60	0.37	40	42	72	5°	1.30	435.00
TMT 150	1/2”	30-150	1	25.81-114.32	0.74	40	42	72	5°	1.50	520.00
TMT 200	1/2”	40-200	1	33.19-151.20	0.74	40	42	72	5°	1.50	520.00
TMT 300	1/2”	60-300	1	47.94-244.96	0.74	40	42	72	5°	1.60	580.00
TMT 340	1/2”	60-340	1	47.94-244.96	0.74	40	42	72	5°	1.60	580.00

Swipe the table sideways to see all columns.

Dimensions in mm. Also available in preset (fixed setting) versions for repetitive production and assembly operations. L.C. = least count.

WhatsApp enquiry +91 1762 498014

Torque Master KT series light weight torque wrench

Kaizen Series Light Weight Torque Wrenches (KT)

Six ratchet-head light weight torque wrenches for everyday tightening in assembly and maintenance, from the KT 50 to the KT 1000, in 3/8", 1/2" and 3/4" square drive, each with a 6° swing arc.

Torque Master KT series light weight torque wrench dimension drawing showing head depth A, head width B and overall length L — Dimensions: A = head depth, B = head width, L = overall length (approx.), as printed in the catalogue drawing.

Kaizen Series KT light weight torque wrenches
Model	Square drive	N·m		lbf·ft		Head depth (A)	Head width (B)	Swing arc	Weight (kg)	Overall length approx. (L) (mm)
Model	Square drive	Range	L.C.	Range	L.C.	Head depth (A)	Head width (B)	Swing arc	Weight (kg)	Overall length approx. (L) (mm)
KT 50	3/8”	10-50	0.25	8.29-37.8	0.184	32 mm	30 mm	6°	1.00	360
KT 100	1/2”	10-100	0.50	9.25-75.85	0.37	42 mm	44 mm	6°	1.10	400
KT 200	1/2”	40-200	1.00	33.3-151.7	0.74	42 mm	44 mm	6°	1.25	470
KT 300	1/2”	60-300	1.00	48.10-225.7	0.74	42 mm	44 mm	6°	1.40	550
KT 400	3/4”	80-400	1.00	62.90-299.7	0.74	50 mm	48 mm	6°	1.70	680
KT 1000	3/4”	240-1020	3.00	157.7-743.7	2.22	62 mm	67 mm	6°	4.50	1220

Swipe the table sideways to see all columns.

L.C. = least count. Specifications are subject to change without prior notice.

WhatsApp enquiry +91 1762 498014

Torque Master KTi series light weight interchangeable head torque wrench with open end fitting — KTi with open end fitting, and with the spigot bare

Torque Master KTi series light weight interchangeable head torque wrench, spigot end without fitting — KTi with open end fitting, and with the spigot bare

Kaizen Series Interchangeable Head Torque Wrenches (KTi)

Spigot-type versions of the light weight range that accept interchangeable fittings. The KTi 1000 has a 22 mm spigot; all other models have a 16 mm spigot.

Kaizen Series KTi interchangeable head torque wrenches
Model	Spigot	N·m		lbf·ft		Weight (kg)	Approx. OAL at min. cap. (mm)
Model	Spigot	Range	L.C.	Range	L.C.	Weight (kg)	Approx. OAL at min. cap. (mm)
KTi 50	16mm	10-50	0.25	8.29-37.8	0.184	0.65	360
KTi 100	16mm	10-100	0.50	9.25-75.85	0.37	0.95	350
KTi 200	16mm	40-200	1.00	33.3-151.7	0.74	1.10	430
KTi 300	16mm	60-300	1.00	48.10-225.7	0.74	1.25	510
KTi 400	16mm	80-400	1.00	62.90-299.7	0.74	1.50	630
KTi 1000	22mm	240-1020	3.00	155.7-743.7	2.22	3.90	1170

Swipe the table sideways to see all columns.

L.C. = least count. Specifications are subject to change without prior notice.

WhatsApp enquiry +91 1762 498014

Torque Master TM i series interchangeable head torque wrench with open end fitting — TM i with square driver

Torque Master TM i series torque wrench with square driver fitted — TM i with square driver

Torque Master open end fitting for 16 mm spigot — Open end fitting

Torque Master ratchet head fitting for 16 mm spigot — Ratchet head fitting

Torque Master torque wrench square driver — Square driver

Interchangeable Head Torque Wrenches (TM i)

2026 catalogue

A 16 mm spigot accepts open-end fittings, ratchet heads and square drivers, so one wrench can serve a variety of fastener sizes and access conditions. Six models, TM 10i to TM 250i, covering 3 to 340 N·m.

TM i series interchangeable head torque wrenches
Model	Spigot	N·m		lbf·ft		kgf·m		lbf·in	Head width	Approx. OAL at min. cap.	Weight (kg)
Model	Spigot	Range	L.C.	Range	L.C.	Range	L.C.	Range	Head width	Approx. OAL at min. cap.	Weight (kg)
TM 10i	16mm	3-14	0.5	2-10	0.5	0.3-1.4	0.1	20-120	25 mm	340 mm	0.60
TM 25i	16mm	5-35	2	5-25	1	0.5-3.5	0.2	40-300	25 mm	370 mm	0.70
TM 50i	16mm	10-70	2	8-50	2	1-7	0.2	100-600	28 mm	480 mm	0.90
TM 100i	16mm	20-135	5	16-100	2	2-14	0.5	210-1200	28 mm	580 mm	1.20
TM 160i	16mm	40-225	5	40-160	5	4-23	1	450-2000	32 mm	640 mm	2.20
TM 250i	16mm	60-340	10	50-250	5	6-35	1	600-3000	32 mm	800 mm	2.70

Swipe the table sideways to see all columns.

Open end fittings: 16 mm spigot

Open end fittings, 16 mm spigot
Part number	A/F size	Spigot	Max. torque
OJ16-8	8 mm	16 mm	13 N·m
OJ16-9	9 mm	16 mm	19 N·m
OJ16-10	10 mm	16 mm	32 N·m
OJ16-11	11 mm	16 mm	41 N·m
OJ16-12	12 mm	16 mm	41 N·m
OJ16-13	13 mm	16 mm	51 N·m
OJ16-14	14 mm	16 mm	63 N·m
OJ16-15	15 mm	16 mm	77 N·m
OJ16-16	16 mm	16 mm	92 N·m
OJ16-17	17 mm	16 mm	107 N·m
OJ16-18	18 mm	16 mm	128 N·m
OJ16-19	19 mm	16 mm	149 N·m
OJ16-20	20 mm	16 mm	172 N·m
OJ16-21	21 mm	16 mm	198 N·m
OJ16-22	22 mm	16 mm	225 N·m
OJ16-23	23 mm	16 mm	225 N·m
OJ16-24	24 mm	16 mm	287 N·m
OJ16-25	25 mm	16 mm	322 N·m
OJ16-26	26 mm	16 mm	330 N·m
OJ16-27	27 mm	16 mm	330 N·m
OJ16-28	28 mm	16 mm	330 N·m
OJ16-29	29 mm	16 mm	330 N·m
OJ16-30	30 mm	16 mm	330 N·m
OJ16-31	31 mm	16 mm	330 N·m
OJ16-32	32 mm	16 mm	330 N·m

Ratchet head fittings: 16 mm spigot

Ratchet head fittings, 16 mm spigot
Part number	Description	Torque	Gear teeth
RH16-1i	Ratchet Head 3/8”	0-100 N·m	60
RH16-2i	Ratchet Head 1/2”	0-340 N·m	60
RH16-3i	Ratchet Head 3/4”	0-340 N·m	60

Torque wrench square drivers

Torque wrench square drivers
Part number	Square drive
TMSQD-1	3/8”
TMSQD-2	1/2”
TMSQD2-1	1/2” x 3/8”
TMSQD-3	3/4”
TMSQD3-4	3/4”x1"
TMSQD-4	1”

L.C. = least count. Specifications are subject to change without prior notice.

WhatsApp enquiry +91 1762 498014

Torque Master TMSD torque screwdriver with T-handle and 1/4" square drive

Torque Screwdrivers (TMSD)

Manual torque screwdrivers bring controlled tightening to small screws and fasteners where over-tightening must be avoided. Three models, TMSD 15, TMSD 50 and TMSD 60, with 1/4" square drive, covering 0.1 to 6 N·m.

TMSD torque screwdrivers
Model	Square drive	Range (N·m)	Range (kgf·cm)	Weight (kg)
TMSD 15	1/4”	0.1-1.5	1-15	0.350
TMSD 50	1/4”	1-5	10-50	0.350
TMSD 60	1/4”	1-6	10-60	0.350

Specifications are subject to change without prior notice.

WhatsApp enquiry +91 1762 498014

Torque Master hand-operated torque multiplier with reaction arm

Torque Multipliers

A torque multiplier increases the torque an operator can apply. Because power output cannot exceed power input, the output turns fewer revolutions than the input (torque × rpm = power). Hand-operated Torque Master multipliers have factors of 5, 25 and 125, with ½" and ¾" input drives and output drives from ¾" to 2 1/2", up to 48,450 N·m.

Specifications

Torque multipliers
Model (plate type)	Handle type	Torque capacity			Factor	Female input sq. dr.	Male output sq. dr.	Recommended torque wrench
Model (plate type)	Handle type	lbf·ft	kgf·m	N·m	Factor	Female input sq. dr.	Male output sq. dr.	Recommended torque wrench
TM 1	TMH-1	1250	170	1700	5	1/2"	3/4"	TM 250R
TM 2	TMH-2	1250	170	1700	5	1/2"	1"	TM 250R
TM 5	TMH-5	2000	275	2750	5	3/4"	1"	TM 400R
TM 5/25	TM-5/25	2000	275	2750	25	1/2"	1"	TM 100R
TM 6		2500	345	3450	5	3/4"	1 1/2"	TM 500R
TM 6/25		2500	345	3450	25	1/2"	1 1/2"	TM 100R
TM 7		4500	622	6220	5	3/4"	1 1/2"	TM 1000R
TM 7/25		4500	622	6220	25	1/2"	1 1/2"	TM 250R
TM 9/25		7000	968	9680	25	3/4"	1 1/2"	TM 400R
TM 11/25		12500	1734	17340	25	3/4"	2 1/2"	TM 500R
TM 13/125		35000	4845	48450	125	3/4"	2 1/2"	TM 400R

Swipe the table sideways to see all columns.

Dimensions and weights

Torque Master torque multiplier dimension drawing showing Ø, max. bolt separation, height and length — Dimensions: Ø, max. bolt separation, height and length, as listed in the table below (mm).

Torque multiplier dimensions
Model	Ø (mm)	Max. bolt separation (mm)	Height (mm)	Length (mm)	Weight (kg)
TM 1	120	205	124	300	5.0
TM 2	120	205	124	300	5.0
TM 5	150	260	150	380	9.0
TM 5/25	150	260	210	380	14.5
TM 6	150	260	150	380	10.0
TM 6/25	150	260	210	380	14.5
TM 7	180	305	180	450	17.0
TM 7/25	180	305	240	450	21.0
TM 9/25	210	350	260	505	31.5
TM 11/25	235	475	340	660	51.0
TM 13/125	322	500	440	610	105.0

Specifications are subject to change without prior notice.

Why use a torque multiplier?

Safety: long levers can be dangerous; a multiplier reduces the lever length or operator effort by a factor of 5, 25 or 125.
Space limitation: a long lever may be impossible to use in the space available.
Accuracy: torque is applied most accurately when it is applied smoothly and slowly; a multiplier removes much of the physical effort from the tightening task.

Torque Master torque multipliers are made to high precision and must pass a number of quality control tests before dispatch.

WhatsApp enquiry +91 1762 498014

Torque Master torque wrench features

Extra heavy duty: high-strength alloy steel and precise heat treatment mean the wrenches are built to last.
Sturdy storage: supplied in a rugged blow-moulded case (up to TM 750/750R) or a sturdy steel case (above TM 750/R) for protection of your tool.
Accuracy: ±3% accuracy, better than the ±4% required by ISO 6789:2017.
Three-phase signal: a sight, touch and sound signal lets the user know the set torque has been reached, even in a noisy environment.
Comfort: the synthetic double-moulded handle (up to TM 250/TM 250R) is made from specially selected resin that resists chemicals in automotive and industrial use; its ergonomic shape and soft-feel, high-grip material make it more comfortable to use.
Bi-directional torque: torque can be applied to both right-hand and left-hand threaded nuts and bolts.
Range: covers 2 N·m to 4050 N·m.
Ideal for confined spaces: all ratchet-type models have a low re-engagement angle of 6 degrees.
Available in standard and ratcheting types. Production (fixed setting) and open-end types can be supplied against specific orders.

Durability has been a priority throughout development, both in the life of the tool and in its calibration. Full-load tests are carried out on each and every torque wrench before dispatch.

Every wrench ships with an ISO 6789 calibration certificate

Each torque wrench is tested before dispatch. The certificate records the set torque, the allowed limits and the actual reading.

View sample certificate (PDF)

Sample ISO 6789 calibration certificate supplied with a Torque Master TM 25R torque wrench

Torque Wrenches

Torque wrench overview

Special versions

Industrial Torque Wrenches: Standard

TM 10 to TM 3000

Industrial Torque Wrenches: Ratchet Type

TM 10R to TM 3000R

Click Type Micrometer Torque Wrenches (TMT)

Models with secondary scale in lbf·in

Models with secondary scale in lbf·ft

Kaizen Series Light Weight Torque Wrenches (KT)

Kaizen Series Interchangeable Head Torque Wrenches (KTi)

Interchangeable Head Torque Wrenches (TM i)

Open end fittings: 16 mm spigot

Ratchet head fittings: 16 mm spigot

Torque wrench square drivers

Torque Screwdrivers (TMSD)

Torque Multipliers

Specifications

Dimensions and weights

Why use a torque multiplier?

Torque Master torque wrench features

Every wrench ships with an ISO 6789 calibration certificate

Need a price, a datasheet or the right torque range?