By: Wheeler Fine Gunsmithing Supplies
Wheeler's FAT Wrench brings perfect consistency to every screw on your rifle! This amazing handheld torque wrench lets you apply repeatable, accurate torque settings to scope rings, guard screws and other screws, which aids in accuracy and decreases the opportunity for problems in the field.
The Wheeler Engineering F.A.T. Wrench is a hand driven, click/clutch system torque wrench that is very useful in apply the necessary torque to most firearms and firearm accessory fasteners. The F.A.T. Wrench features an ergonomic handle, a standard 1/4" hex drive tip, and can be used to apply torque from 10 to 65 in-lbs at 5 in-lbs increments. Common uses include; but are not limited to; instillation of scope rings and base screws, action screws and trigger guard screws. With proper care and use, the F.A.T. Wrench will provide you with a lifetime of reliable service. Package includes 9 bits and a square drive adapter.
-The F.A.T. Wrench is used like a screwdriver; it is not a ratcheting device.
-Leaving the F.A.T. Wrench adjusted at a high torque setting for extended periods of time may damage the internal mechanisms, resulting in inaccurate torque adjustments. ALWAYS ADJUST THE F.A.T. WRENCH TO THE LOWEST TORQUE SETTINGS AFTER EACH USE.
-Adjusting the F.A.T. Wrench beyond the torque wrench setting of 65 in-lbs may damage the internal mechanisms, resulting in inaccurate torque adjustments.
-The F.A.T. Wrench is compatible with all the bits contained in the Wheeler Engineering 89 piece Screwdriver Set.
-The F.A.T. Wrench is designed for +/- 2 in-lbs accuracy up to 40 in-lbs, +/- 5% over 40 in-lbs.
-The F.A.T. Wrench can be used to apply torque to any fastener; it is not limited to firearms and firearm accessories.
-Always protect the area surrounding screw heads with masking tape to prevent marring of metal and wood finished - just in case a bit slips out of the screw head while tightening.
-Small, inexpensive screws can be damaged with high torque settings. Be sure to comply with recommended settings.
-Small bits can be damaged with high torque settings. Replacement bits are available.
What do I need a Tourque Wrench?
Adjusting screws on gun actions, scope bases ans scopre rings can not only prevent damage to your gun but can greatly increase accuracy.
What torque should I adjust my fasteners to?
Always refer to manufacturesr specs but we recommend:
Base Screws 30 inch-lbs
Ring Screws (aluminum) 10 -15 inch-lbs
Ring Screws (Steel) 15-20 inch-lbs
Windage Screws 30-40 inch-lbs
(with bedding pillars) 65 inch-lbs
(no bedding pillars) 40 inch-lbs
*note: middle guard screw should not be torqued
Will bits from my Wheeler Engineering Screwdriver Set fit?
Yes. The bits included in the Wheeler 89pc set and 72pc set are designed to work perfectly with the FAT Wrench.
Storage Tip for FAT Wrench.
Never leave the Fat Wrench adjusted to high torque settings for extended periods of time. After each use adjust the torque to the lowest setting prior to storage. This will releive the tension from the internal mechanisms and ensure maximum accuracy over time.
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