Contact Us

Van F. Belknap Co., Inc.
29164 Wall Street
Wixom, MI 48393 USA
(248) 348-7800
sales@belknaptools.com

NEED A SPECIALLY
DESIGNED TOOL?

You're at the right place! Belknap is the Leader in Specialty Torque Applications. Check out our Specialty Tools Gallery for a small sampling of what we've produced for our customers over the years.

MICRO-ADJUSTABLE
Torque Wrenches

BELKNAP’S MICRO-ADJUSTABLE TORQUE WRENCHES offer versatility for applications that require more than one torque value. They feature a distinct breaking action when the set torque is reached. Simply pull down the spring loaded lock ring and turn the handle to set your target torque value. The positive locking device cannot be jarred into an unlocked position.

Our own metrology lab tests have shown that repeatability and accuracy are maintained after thousands of cycles (when properly used.) Additionally, our customers over the years have proven our test reports through actual production line and maintenance use.

KEY FEATURES

Standard industrial grade ratchet head.
Accuracy = ± 4% CW and ± 6% CCW from 20% to full scale.
Easy to operate.
Industrial strength.
Easy to read, laser marked scale.
Positive lock with spring loaded pull-down lock ring.
Rugged knurled metal handle for industrial use.
Meets or exceeds ANSI/ASME B107.14M – 1994.
English scale primary, Newton Meter scale secondary.
Most models feature a quick release button which provides good socket retention and easy socket removal.
Calibration certificate available upon request.

USING ADAPTERS OR EXTENSIONS
Adapters or extensions should only be used in line with the wrench, as opposed to being at an angle, and the actual torque applied (TA) will be greater than the torque reading shown.

Determine the actual torque applied by using the formula below:

Belknap Torque Extension Calculator Diagram
* Our online Extensions Calculator does all the calculating for you with real-time updates.

Micro-Adjustable Torque Wrenches

Part #	Torque Range		Increments		Square Drive Size (In.)	Length (In.)	Weight (Lb.)	Ext Handle
Part #	English	Metric (Nm.)	English	Metric	Square Drive Size (In.)	Length (In.)	Weight (Lb.)	Ext Handle
501MRMH	10 - 50 In.Lb.	1.4 - 5.4	1.0 in	0.06 nm	0.250	10.00	0.85
1501MRMH	30 - 150 In.Lb.	2.8 - 16.4	1.0 in	0.10 nm	0.250	10.25	0.85
2502MRMH	50 - 250 In.Lb.	3.9 - 27.7	1.0 in	0.10 nm	0.375	11.00	0.95
7502MRMH	150 - 750 In.Lb.	14.1 - 81.9	5.0 in	0.60 nm	0.375	15.50	2.50
10002MRMH	200 - 1000 In.Lb.	19.8 - 110.2	5.0 in	0.60 nm	0.375	15.75	2.50
25003MRMH	500 - 2500 In.Lb.	39.6 - 276.8	10.0 in	1.20 nm	0.500	18.00	3.20
752MFRMH	15 - 75 Ft.Lb.	10.2 - 98.3	0.5 ft	0.70 nm	0.375	15.50	2.50
1002MFRMH	20 - 100 Ft.Lb.	16.0 - 132.2	0.5 ft	0.70 nm	0.375	15.50	2.55
1503MFRMH	30 - 150 Ft.Lb.	34.0 - 197.0	1.0 ft	1.50 nm	0.500	19.00	3.20
2503MFRMH	50 - 250 Ft.Lb.	47.0 - 332.0	1.0 ft	1.50 nm	0.500	24.50	3.75
6004MFRMH	120 - 600 Ft.Lb.	169.0 - 779.0	5.0 ft	6.80 nm	0.750	41.00	12.00
10005MFRMH	200 - 1000 Ft.Lb.	305.0 - 1322.0	5.0 ft	13.50 nm	1.000	70.00	25.10	1
20005MFMHSS	400 - 2000 Ft.Lb.		10.0 ft		2.000	108.50	48.50	2

NOTES:
• 10005MFRMH comes packed in a metal box.
• 20005MFMHSS is a single scale (ft. lb.), with a fixed/non-ratcheting head and comes packed in a sturdy cardboard box.