Norbar Hand Torque Multiplier (Square ...

Norbar - Hand Torque Multiplier (Square Drive)

Supplier: Hire Torque Tools Victoria

Hand Torque Multiplier (Square Drive)

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The Norbar Hand Torque Multiplier offers the workshop serious torque solutions for the Heavy Maintenance Industry.

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The HT-5 Hand Torque Multiplier

is a good alternative for applications where standard wrenches can't gain correct torque due to space restrictions. Usage is simple:Input to the multiplier is via a ratchet torque wrench set to one fifth of the desired output torque.

Accuracy better than ±4%
HT3 supplied with two reaction bar styles for maximum versatility
Robust industrial tool equals low maintenance & long life
Supplied in a carrying case
1300 N.m version has a spare 3/4" output square included in the kit.

Model	Torque Output Max		Gear Ratio	Square Drive Size		Dimensions				Weight Kg
Norbar HAND TORQUE MULTIPLIER - 5:1 Ratio HT-3
Model	Ft Lbs	Nm	Gear Ratio	Input	Output	A (mm)	B (mm)	C (mm)	D (mm)	Weight Kg
HT3 - 1300	100 to 960	130 to 1,300	5:1	1⁄2"	3⁄4"	108	126	210	180	4.3
HT3- 2700	200 to 2,000	270 to 2,700	5:1	3⁄4"	1"	108	128	210	186	4.3

The HT-5 Hand Torque Multiplier comes complete with 2 Reaction Arms.
One standard dog-leg bar generally used to locate against the nut next to the nut being tightened.

The other , a longer bar type arm for locating against a housing or any Reaction Point near the Nut being tighened.

The Norbar Torque Multiplier HT4

series offers the workplace serious torque solutions. Higher ratios means even smaller torque wrenches can be used. The HT-4 also features a Anti Backlash pawl to retain any wind-up. Available in 15:1 or 25:1 gear ratios more torque is for less effort. Supplied in lockable carry case.

Guaranteed accuracy of better than +/-4%,
High ratios allow use of a small torque wrench.
Minimal maintenance and long life due to the robust construction.
Supplied in a carry case with replacement square drive.
Anti Wind-Up Ratchet (Anti Backlash) fitted - safer and practical operation.
Angle protractor for easy torque and angle tightening.

Model	Torque Output Max		Ratio	Square Drive Size		Dimensions				Weight Kg
Norbar HAND TORQUE MULTIPLIERS - High Ratio HT-4
Model	Ft Lbs	Nm	Ratio	Input	Output	A (mm)	B (mm)	C (mm)	D (mm)	Weight Kg
HT4-15.5	220 to 2,200	300 to 3,000	15.5:1	1⁄2"	1"	108	156	450	n/a	8
HT4-26	330 to 3,300	450 to 4,500	26:1	1⁄2"	1"	108	173	450	n/a	8.9

Norbar Standard Series MULTIPLIERS - High Torque Ratios

Electronic torque transducers can be fitted for precise torque monitoring.
True torque multiplication guaranteed better than +/-4%.
High ratios allow the use of a small torque wrench, multipliers can be used where access is limited.
Anti Wind-Up Ratchet available on models of 25:1 ratio and above.

Model	Torque Max		Ratio	Square Drive Size		Dimensions				Tool Weight Kg	Reaction Arm Weight Kg
Norbar Standard Series MULTIPLIERS - High Torque Ratios
Model	Nm	Ft Lb	Ratio	Input	Output	A	B	C Min	C max	Tool Weight Kg	Reaction Arm Weight Kg
1	1700	1250	5:1	1⁄2"	3⁄4"	108	106	83	217	3	2.2
2/5	1700	1250	5:1	3⁄4"	1"	108	126	83	217	3	2.2
2/25 Fitted with AWUR	1700	1250	25:1	1⁄2"	1"	108	141.5	83	217	5.6	2.2
5/5	3400	2500	5:1	3⁄4"	1"	119	142.1	86	264	4.7	2.5
5/25 Fitted with AWUR	3400	2500	25:1	1⁄2"	1"	119	167.6	86	264	7.5	2.5
6/5	3400	2500	5:1	3⁄4"	1-1⁄2"	119	144.7	86	264	4.7	2.5
6/25 Fitted with AWUR	3400	2500	25:1	1⁄2"	1-1⁄2"	119	172	86	264	7.5	2.5

Entry Level . . . The Norbar Highwayman Series

Entry Level . . . The Norbar highwayman series Torque Multipliers offer handy solutions for general engineering. Driven by a hand torque wrench the 5:1 gear ratio provides a multiplying torque gain. Perfect for hard to get to areas and to improve torque accuacy when doing up bolting. Also ideal for non powered sites or workshops.
Supplied as a kit. Included is a lockable black case, drop down dog leg reaction arm and a straight bar reaction arm. Hand Torque wrench not included. Impact Sockets should be used.

The HT-5 Hand Torque Multiplier

Accuracy better than ±4%
HT3 supplied with two reaction bar styles for maximum versatility
Robust industrial tool equals low maintenance & long life
Supplied in a carrying case
1300 N.m version has a spare 3/4" output square included in the kit.

Model	Torque Output Max		Gear Ratio	Square Drive Size		Dimensions				Weight Kg
Norbar HAND TORQUE MULTIPLIER - 5:1 Ratio HT-3
Model	Ft Lbs	Nm	Gear Ratio	Input	Output	A (mm)	B (mm)	C (mm)	D (mm)	Weight Kg
HT3 - 1300	100 to 960	130 to 1,300	5:1	1⁄2"	3⁄4"	108	126	210	180	4.3
HT3- 2700	200 to 2,000	270 to 2,700	5:1	3⁄4"	1"	108	128	210	186	4.3

The HT-5 Hand Torque Multiplier comes complete with 2 Reaction Arms.
One standard dog-leg bar generally used to locate against the nut next to the nut being tightened.

The other , a longer bar type arm for locating against a housing or any Reaction Point near the Nut being tighened.

The Norbar Torque Multiplier HT4

Guaranteed accuracy of better than +/-4%,
High ratios allow use of a small torque wrench.
Minimal maintenance and long life due to the robust construction.
Supplied in a carry case with replacement square drive.
Anti Wind-Up Ratchet (Anti Backlash) fitted - safer and practical operation.
Angle protractor for easy torque and angle tightening.

Model	Torque Output Max		Ratio	Square Drive Size		Dimensions				Weight Kg
Norbar HAND TORQUE MULTIPLIERS - High Ratio HT-4
Model	Ft Lbs	Nm	Ratio	Input	Output	A (mm)	B (mm)	C (mm)	D (mm)	Weight Kg
HT4-15.5	220 to 2,200	300 to 3,000	15.5:1	1⁄2"	1"	108	156	450	n/a	8
HT4-26	330 to 3,300	450 to 4,500	26:1	1⁄2"	1"	108	173	450	n/a	8.9

Norbar Standard Series MULTIPLIERS - High Torque Ratios

Electronic torque transducers can be fitted for precise torque monitoring.
True torque multiplication guaranteed better than +/-4%.
High ratios allow the use of a small torque wrench, multipliers can be used where access is limited.
Anti Wind-Up Ratchet available on models of 25:1 ratio and above.

Model	Torque Max		Ratio	Square Drive Size		Dimensions				Tool Weight Kg	Reaction Arm Weight Kg
Norbar Standard Series MULTIPLIERS - High Torque Ratios
Model	Nm	Ft Lb	Ratio	Input	Output	A	B	C Min	C max	Tool Weight Kg	Reaction Arm Weight Kg
1	1700	1250	5:1	1⁄2"	3⁄4"	108	106	83	217	3	2.2
2/5	1700	1250	5:1	3⁄4"	1"	108	126	83	217	3	2.2
2/25 Fitted with AWUR	1700	1250	25:1	1⁄2"	1"	108	141.5	83	217	5.6	2.2
5/5	3400	2500	5:1	3⁄4"	1"	119	142.1	86	264	4.7	2.5
5/25 Fitted with AWUR	3400	2500	25:1	1⁄2"	1"	119	167.6	86	264	7.5	2.5
6/5	3400	2500	5:1	3⁄4"	1-1⁄2"	119	144.7	86	264	4.7	2.5
6/25 Fitted with AWUR	3400	2500	25:1	1⁄2"	1-1⁄2"	119	172	86	264	7.5	2.5

Entry Level . . . The Norbar Highwayman Series

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HT3 Torque Multiplier Brochure(0.17MB)

Standard Series Brochure(0.29MB)

AI Overview BETA

Norbar hand torque multipliers increase tightening torque on bolted connections where space limits standard wrench access. The Highwayman series uses a 5:1 gear ratio to multiply input from a hand torque wrench for work in hard-to-reach areas. For general engineering workshops and non-powered sites, the Highwayman kit includes straight and drop-down dog-leg reaction arms for locating against a nearby nut or housing.

HT3-1300: maximum output 1,300 Nm; HT3-2700: maximum 2,700 Nm
HT4-15.5: maximum output 3,000 Nm; HT4-26: maximum 4,500 Nm
HT3 and HT4: accuracy better than ±4%
HT4: anti-backlash pawl retains wind-up; angle protractor supports torque-and-angle tightening
Highwayman: lockable case included; hand torque wrench excluded; use impact sockets

Source: listing by Hire Torque Tools Victoria on IndustrySearch · Updated 4 Nov 2026
Supplier document: HT3 Torque Multiplier Brochure (PDF)

AI Overview is generated by artificial intelligence and may contain mistakes.

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