ACDelco ARM602-4A 1/2” (25 to 250 ft-lbs.) Heavy Duty Digital Torque Adapter with Buzzer and LED Flash Notification – ISO 6789 Standards with Certificate of Calibration








Key features
- •Converts any ratchet wrench into a precision torque wrench; accurate calibration device for existing digital and analog torque wrenches
- •Three color LED light indicator and audible sound once torque setting is reaching (25-250-foot pounds wide torque range)
- •Guaranteed Accuracy Range: ± 1.5% clockwise ± 2.5% CCW of indicated value, CW, from 20% to 100% of full scale - CR2032 Coin sell batteries required to operate the adapter. (Included)
- •The product quality meets or exceeds ASME B107.14-2004, ISO 6789 standards, individually serialized with matching certificate of calibration traceable to N.I.S.T.
- •1 Year ACDelco Tools Limited Warranty: One-year limited manufacturer's warranty against defects in materials and workman ship.
BrandACDelco Tools
CategoryTorque Wrenches
ACDelco ARM602-4A 1/2” (25 to 250 ft-lbs.) Heavy Duty Digital Torque Adapter with Buzzer and LED Flash Notification – ISO 6789 Standards with Certificate of Calibration
List Price: $120.81$108.73DEALYou Save: $12.08 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It June 24, 2026In Stock (4)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection







