SDR Series Micrometer Adjustable Ratcheting Click Torque Wrench

Please Note: This information is about legacy tools. We replaced the neoprene grip with a knurled metal grip in 2016. You can still order these tools using these part numbers but they are built to order and you can expect extended lead times. We keep the current models in stock. You will get those tools much faster.

To reach the page for the current SDR Series wrenches, click here.

Need a parts print? Click on the part number and the PDF will launch.

Specification and Ordering Information

SDR micrometer adjustable torque wrench with ratchet

Technical Information

SDR Micrometer Adjustable Click Wrench Dimensions English Units of Measure

Part Number	Model Designation	Minimum Capacity	Maximum Capacity	Graduation	A (in.)	B (in.)	C (in.)	D (in.)	Weight (lbs.)	Drive Size (in.)
810749	2 SDR 50 I	10 in lb	50 in lb	1 in lb	10.1	1.0	0.8	0.9	1.0	1/4
810750	2 SDR 150 I	30 in lb	150 in lb	2 in lb	10.1	1.0	1.1	0.9	1.1	1/4
810751	3 SDR 150 I	30 in lb	150 in lb	2 in lb	10.6	1.4	1.1	0.9	1.1	3/8
810761	3 SDR 200 I	40 in lb	200 in lb	2 in lb	10.7	1.4	1.1	0.9	1.1	3/8
810748	3 SDR 600 I	120 in lb	600 in lb	5 in lb	14.0	1.4	1.1	0.9	1.5	3/8
810752	3 SDR 750 I	150 in lb	750 in lb	5 in lb	14.0	1.4	1.1	0.9	1.5	3/8
810747	3 SDR 1200 I	240 in lb	1200 in lb	10 in lb	17.6	1.4	1.1	0.9	1.5	3/8
810755	4 SDR 1800 I	360 in lb	1800 in lb	10 in lb	18.3	1.9	1.1	0.9	2.0	1/2
810756	3 SDR 75	10 ft lb	75 ft lb	0.5 ft lb	14.0	1.4	1.1	0.9	1.5	3/8
810754	3 SDR 100	20 ft lb	100 ft lb	1 ft lb	17.6	1.9	1.1	0.9	1.5	3/8
810757	4 SDR 150	30 ft lb	150 ft lb	1 ft lb	18.3	1.9	1.4	0.9	2.0	1/2
810758	4 SDR 250	50 ft lb	250 ft lb	2 ft lb	24.3	2.7	1.4	1.1	3.5	1/2
810760	6 SDR 300	50 ft lb	300 ft lb	2.5 ft lb	29.0	2.7	2.0	2.0	7.8	3/4
810597*	6 SDR 600	100 ft lb	600 ft lb	5 ft lb	39.2	2.7	2.0	2.0	10.5	3/4
810525**	6 SDR 700	100 ft lb	700 ft lb	5 ft lb	39.2	2.7	2.0	2.0	16.5	3/4

*The 810597 an optional handle extension part number 853363 may be used. Use of handle mandates recalibration of wrench.

** The 6 SDR 700 comes from the factory with an extension handle and MUST be used with that handle attached.

SDR Micrometer Adjustable Industrial assembly tool torque wrench

Contact your Sturtevant Richmont Sales Professional.

Technical Information

SDR Micrometer Adjustable Click Wrench Dimensions Metric Units of Measure

Part Number	Model Designation	Minimum Capacity	Maximum Capacity	Graduation	A (mm)	B (mm)	C (mm)	D (mm)	Weight (kg)	Drive Size (in.)
810774	2 SDR 6 Nm	1 Nm	6 Nm	0.1 Nm	257	25	21	24	0.5	1/4
810775	2 SDR 20 Nm	4 Nm	20 Nm	0.2 Nm	257	25	21	24	0.5	1/4
810776	3 SDR 20 Nm	4 Nm	20 Nm	0.2 Nm	270	35	29	24	0.5	3/8
810782	3 SDR 50 Nm	10 Nm	50 Nm	0.5 Nm	371	35	29	24	0.7	3/8
810777	3 SDR 100 Nm	20 Nm	100 Nm	0.5 Nm	371	35	32	24	0.7	3/8
810797	4 SDR 100 Nm	20 Nm	100 Nm	0.5 Nm	371	35	32	24	0.7	1/2
810783	3 SDR 140 Nm	30 Nm	140 Nm	1 Nm	456	49	32	24	0.7	3/8
810798	4 SDR 140 Nm	30 Nm	140 Nm	1 Nm	456	49	32	24	0.7	1/2
810778	4 SDR 200 Nm	40 Nm	200 Nm	1 Nm	470	49	33	24	0.9	1/2
810779	4 SDR 300 Nm	60 Nm	300 Nm	2 Nm	618	49	33	27	1.6	1/2
810789	6 SDR 300 Nm	60 Nm	300 Nm	2 Nm	618	49	41	27	1.6	3/4
810598*	6 SDR 800 Nm	160 Nm	800 Nm	5 Nm	989	68	51	51	4.8	3/4

* The 810598 has an optional extension handle (p/n 853363) that can be ordered. Using the extension handle requires wrench recalibration.

Thinking about Ratchet Renewal Kits? Visit the Ratchet Renewal Page.

The Micrometer Adjustable SDR Series - Square Drive Ratchet

When you constantly need ratchet applications this tool gets the job done. Accuracy/Reliability/Durability in one comfortably gripped torque wrench.

Have micrometer adjustable click wrenches with the neoprene grip and want to convert to the Knurl Grip handle? You can do it yourself and order the parts by going to the Knurl Grip Conversion Kit page.

Watch the Knurl Grip wrench introduction video.

Contact your Sturtevant Richmont Sales Professional.

Applications

Micrometer Adjustable Fixed Square Drive Ratchet torque wrenches are ideal for any application where:

The fastener or fitting can be engaged with a socket.
The operator has to frequently change torque values.
High rotation or limited access requires ratcheting to achieve torque level.
Repeatability and reliability are important.
Error Proofing By Design: Flattened case reduces the effect of side load during application or testing.
The ability to quickly select torque value and lock it is needed.
Operational simplicity is needed.
High durability is important.

Small quantity assembly operations, as well as maintenance and repair functions, find the SDR line of wrenches to fit very well with their needs.

Features and Characteristics

The torque value is adjusted by rotating the grip. Our tools change from the top of the scale to the bottom in the fewest number of turns.
The grip lock makes locking in the torque value fast, easy, and secure.
Ball-bearing rock-over assembly assures smooth operation, enhances repeatability, and increases wrench service life.
Accuracy of +/- 4% of Indicated Value from 20% to 100% of rated capacity.
Meets or exceeds requirements of ASME B107.300-2010 and ISO 6789.
Error Proofing By Guidance: design provides a strong audible and tactile pulse when the set torque is achieved.
Error Proofing By Design: flattened case provides the mechanism with superior support resulting in a wrench that is easier to calibrate and one that holds calibration longer.
Ratchet is built for durability.
Ratchet replacement is fast and easy when needed.
All tools up to 250 ft-lb, or 300 Nm, capacity come with a rugged, custom-molded plastic case.
The 6 SDR 600 Nm and the 6 SDR 800 Nm wrenches also come in the plastic case. (p/n 82170)
The 810760 300 ft. lb. comes in a cardboard shipping case.
Includes FREE tabulated calibration certificate.