Going as low as 1Nm, the Giustaforza 1-8 is made for the bolts where the right torque matters most and is easiest to exceed without noticing. It suits professional mechanics and home mechanics alike, and the Deluxe version adds a bicycle bit set in a roll-up wrap pack.

Highlights

• 1-8Nm range, 0.25Nm scale resolution
• Small fixed, non-ratcheting head for tight spaces
• Takes standard 1/4" bits
• Under 140g, 145mm long, hard-anodised aluminium body
• Deluxe: S2 steel bicycle bit set in a wrap pack

Simple to set

Rotate the end knob and centre the thicker line on the dial over your value: whole and half numbers read on the left, quarters on the right. At the set torque the wrench gives a loud click and a short free movement. Mechanical operation means no batteries to replace.

Light where it counts

At under 140g it weighs less than half of many wrenches in this range, so you feel the bolt at low values instead of the effort of holding the tool.

Calibration

Every Giustaforza is individually checked and numbered. The +/- 4% tolerance is guaranteed for 5,000 cycles (5,000 clicks), after which Effetto Mariposa recommends recalibration; its calibration service extends the tolerance for another 5,000 cycles and returns the wrench with a calibration certificate. Always store the wrench at its minimum setting.

Compatibility & fit

For bicycle bolts from 1 to 8Nm, such as stem, seat clamp and other sensitive fasteners. Calibrated for clockwise tightening; it can unscrew but won't click anticlockwise. Always follow the torque value specified by the component maker.