Quick Start Guide of Digital Torque Adapter

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Applicable Model# ARM602-3, ARM602-4x, RM602-3, RM604-4A Check also FAQ page Step 1: Insert Batteries (2x CR2032) Step 2: Set the Torque Alert Value. See below quick instructions for Changing mode (Peak, Trace, Setup), changing unit, setting Alarm Angle mode available for selected models only (e.g. RM604-4A).  Angle mode on RM604-4A does NOT support alarm setting […]

Digital Torque Wrench FAQ ARM3xx series

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Applicable models 1/4″ Drive: ARM313-2A, ARM325-2i, ARM331-2i, 3/8″ Drive: ARM315-3A, ARM327-3i, 1/2″ Drive: ARM303-4A, ARM317-4A, ARM329-4i 3/4″ Drive: ARM319-6A, ARM321-6A 1″ Drive: ARM323-8A Q: Display showing Non-Stop 0000 For product with angle measurement function, the 0000 means the internal gyroscope is performing angle self-calibration during power cycle.  Place product on flat surface when powering up, […]

Why my ETC Auto-shutoff tool stops at lower torque than stated?

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The ETC auto-shutoff (Electronic Torque Control) torque values are measured based on tuned lab conditions of regular test bolts on a hard joint, and motor powered by preset electric parameters: Voltage (V) Current (A) Speed (RPM) Timing (T) For more information about ETC, click here However, the measured torque from this same preset parameters on […]

Power Ratchet Wrench Q&A

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Power Ratchet Wrench 101   Power Ratchet wrenches are often used to replace manual ratchet wrenches by saving repeated arm movement and faster spin.  As the applications are to use in tight space and save repeated arm motion, the torque power is usually secondary to many skilled users because the ratchet mechanism in the tool […]

Torque Level at Each Electronic Torque Control Stage (ETC)


Some Basic of Electronic Torque Control (ETC) Electronic Torque Control utilizes advanced sensing and control capabilities of a Brushless DC (BLDC) Motor to precisely regulate current going into the motor.  Specific torque at each Stage was tuned according to the brushless motor specification, gears/impact mechanism, current and timing.  It is similar to a car gear […]

Warehouse Clerk

Warehouse Clerk Job Location: Rancho Cucamonga, California Duties Inventory Control Forklift Operation Returned material handling and inspection Communicate and assist customer’s queries Requirements Have experience in the power tool industry for at least one year or more Has experience with shipping and receiving processes Able to take orders with a positive attitude Able to follow […]

ARM601-x RM601-x RM607-x No Power – Battery Holder Test

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If ARM601-x RM601-x or RM607-x can’t be powered on or shows “LOV” (Low Voltage).  Perform below Change all 4 AAA batteries and put them in correct direction as indicated if problem exists, test the battery holder voltage (see below picture) and voltage of each battery battery holder should read 5~6V for new batteries each AAA […]