supply of interchangeable head z-shankinterchangeable head z-shank,interchangeable head z-shank control tech industrial torque wrench (40 nm-813 nm make: snap-on or equivalent. specification: technical specifications: (1)torque range: 40 nm - 813 nm, (2)torqu e accuracy: +-1.5% (clockwise) +-3% (counter-clockwise), (3)angle accuracy: +-1% of reading, (4)operati ng modes: combined torque and angle mode for precise fastening in a single operation, (5)body constructi on: rugged all-steel housing for industrial durability, (6) display: large backlit lcd screen with dual-side le d indicators , (7)feedback modes: visual, audible, and vibratory feedback for enhanced operator awarenes s,(8) preset storage: up to 50 programmable presets with sequence programming capability,(9) data stora ge: internal memory for up to 1500 readings, (10)data interface: usb connectivity for data export and trac eability , (11) calibration: built-in calibration factor for various interchangeable head lengths , (12) security : configurable password protection, (13)operating conditions: temperature: 0 degree f to 130 degree f (1 8 degree c to 54 degree c) humidity: up to 90% non-condensing, (14) power supply: 3 x aa lithium batteri es (included), (15)accessories: supplied with durable protective storage case, (16) compliance: iso 6789:2 003 and asme b107.300 standards. accessory: 30 mm open-end head with z-shank and dual pins the 30 mm open-end head with z-shank is specifically engineered for use with z-shank torque wrench configurati ons. technical specifications : (1)torque capacity: up to 560 nm, (2) paired with the wrench opening size: 30 mm, (3)head depth: 13 mm, (4)design: dual-pin z-shank interface ensuring secure attachment and acc urate torque transfer, (5)application: suitable for fastening operations in confined or obstructed spaces, (6) construction: heavy-duty design providing long-term reliability under demanding operational conditions [ warranty period: 30 months after the date of