Torque wrenches for Gunsmithing.

Best Torque Wrenches: As with all things, all Torque wrenches are not created equal so we compiled a list of Best Torque Wrenches for Gunsmithing. As we all know you will read on the internet all sorts of boastful claims that cannot be backed up by reality. In this article we discuss which tool is best for the intended purpose and why. Let’s get started, we went through the inch pound (in/lbs) torque wrenches listed on everybody’s favorite go to, Amazon.com and ranked the top 10 in both the under 65 in/lbs category and the under 250 in/lbs category.

The following is the top ten list for the under 65 in/lb category.

They are great for scope base install, trigger adjustment locknuts, ring caps, stock side retaining screws etc.  That’s why we use a torque wrench, for accuracy and consistent repeatability, not just close enough and not stripped or broken.

Top 10 0-65 inch pound torque drivers

#1           CDI /Snap-on      401SM

The CDI 401SM Micro Adjustable Torque Screwdriver from Snap-On Industrial Brands has a 1/4″ Female Hex Drive and English range of 5-40 In Lbs . Adjustable models offer versatility for applications that require more than one torque value.

A simple, cam-over design prevents over-tightening and possible damage to components. Torque settings are easily and accurately changed with a unique adjusting knob and easy-to-read window scale. Adjusting the screwdriver is simple. Just pull out the adjusting knob to unlock, turn to the desired setting, then push the knob in until it clicks! Positive locking knob makes accidental setting changes impossible. This 1/4 drive torque screwdriver features an automatic lock in the counterclockwise direction to make fastener removal a snap.

Meets or exceeds ASME B107.14 – 2004

#2           Precision Instruments      PREMD1F35H

Torque wrenches for Gunsmithing

As hand drivers are more convenient than ratchet wrenches for some applications, torque drivers are more convenient than torque wrenches for some applications.  Also, torque drivers are not hand-held sensitive.

The guaranteed accuracy of this torque screwdriver exceeds the requirements of: MIL-W-26497C

#3           Proto      J6106ACERT

Torque wrenches for Gunsmithing

The Proto J6106ACERT Adjustable Torque Screwdriver has a 1/4″ Drive and an English range of 7-36 in-lbs Manufactured to meet standard industrial torque applications such as general industry, heavy equipment and maintenance.

Meets or exceeds ASME B107.14M – 2004

The next category is the top ten list for the under 250 in/lb category. The best torque wrench for gunsmithing in this category is also a toss up between the top 3 and personal preference. The top two are a dial type wrench that are extremely accurate but require you to be able to see the dial from straight on. The third wrench on the list I own and is a click type micrometer style torque wrench with 1 in/lb graduations.

These wrenches are great covering the larger items like stock to receiver screw, ring/scope mount to base fasteners, adjustable butt fasteners etc.

Top 10 under 200 inch pound Torque wrenches

#1            Precision Instruments      PRED2F150HM

Torque wrenches for Gunsmithing

The Dial Type Wrench provides an excellent solution for many applications. The wide range of scales makes selecting the appropriate tool easy. Accurate to 2% of the reading from 20% of full scale to full scale clockwise and counterclockwise, the Dial Type Wrench is the most accurate torque wrench family.  I used this torque wrench to install to install the SPUHR ISMS in the review article.

Meets or Exceeds the following Specifications: GGG-W-686C, ANSI B107.14M

#2            CDI      1502LDIN

Torque wrenches for riflesDial Torque Wrenches are designed for the automotive, nuclear and industrial markets in addition to military installations throughout the world. This series features sturdy torsion beam design for dependable long life and accuracy. The small frame model offers working ranges from 3 in. lbs. to 50 ft. lbs. in 1/4″ and 3/8″ drives. The large frame model continues from 100 ft. lbs. through 2,000 ft. lbs. with 1/2″, 3/4″ and 1″ drives. Accuracy of both series of ± 3% meets or exceeds ASME standards, ISO 6789 bi-directionally from 20% to 100% of scale.

All wrenches supplied with a N.I.S.T. traceable certificate of calibration.The CDI 1502LDIN is CDI’s Dial Torque Wrench, offered by Pro Torque Tools.  The CDI 1502LDIN has a 3/8″ drive and a dual scale, as well as an English range from 0 to 150 in lbs and a metric range from 0 to 18 Nm. Meets or exceeds ASME B107.14 1994, ISO 6789

#3            CDI /Snap-on      CDI1501MRMH

Torque wrenches for Gunsmithing

Metal Handle Dual Scale. The metal handle series offers the user a rugged, industrial strength torque wrench able to withstand the rigors of professional use.

Meets or exceeds ASME B107.14-2004, ISO 6789 standards

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