DEDRA 17J112Z ratchet wrench

Dedra Ratchet 1/4" 72T CRV 6140 is a hand tool designed for controlled tightening and loosening of small to medium fasteners. It features a 1/4" square drive and a 72-tooth ratchet mechanism that enables fine step operation and minimal handle movement when reversing. The bent head provides better access in confined or angled spaces, while the chrome-vanadium steel construction ensures strength and wear resistance. The dual-material handle delivers improved grip and user comfort during repeated use.

Advantages

The 72-tooth mechanism reduces the swing arc required to engage the next tooth, allowing precision work in tight spots. The bent head improves access to recessed fasteners and awkward angles without compromising leverage. Chrome-vanadium steel construction provides durability and resistance to deformation under torque. The dual-material handle combines a firmer inner core for control with a softer outer grip for slip resistance and comfort, reducing hand fatigue during extended tasks.

Suitable for

• Automotive maintenance and repair tasks where confined access is common
• Mechanical assembly and disassembly of equipment with small fasteners
• Home DIY projects requiring precise torque control in tight spaces
• Electronics and hobby work involving small nuts and bolts

Key specifications

• Drive size: 1/4" square
• Tooth count: 72 (fine-step ratchet)
• Head style: bent/angled head for improved access
• Material: chrome-vanadium steel (CRV)
• Handle: dual-material (hard core with softer overmolded grip)
• Function: reversible ratchet mechanism for tightening and loosening fasteners

How to use

Select the appropriate socket for the fastener and mount it onto the 1/4" square drive. Position the bent head and socket onto the fastener, set the ratchet direction to tighten or loosen, and operate the handle with controlled strokes. The 72-tooth mechanism allows small incremental movements; use gentle, steady force to avoid overtightening. After use, clean any debris from the mechanism and store the tool in a dry place to maintain performance.

Usage recommendations

Use the ratchet within its intended torque range and avoid using cheater bars or excessive force. For best grip and safety, keep the dual-material handle clean and free from oil or grease. Regularly inspect the drive and mechanism for wear, and replace damaged sockets to prevent rounding of fasteners.