HRB RB/SR Crank Socket

Get precise, confidence-inspiring crankshaft control with the HRB RB / SR Crank Socket. Engineered by performance engine builders and refined through years of real-world use, this purpose-built socket eliminates the compromises of modified or generic tools when working on high-performance Nissan engines.

Designed to suit both RB and SR platforms, this crank socket provides a tight, secure fit on the crank snout and keyway, allowing smooth and accurate rotation during engine assembly, timing setup, and servicing. It’s an essential tool for builders who demand reliability and repeatable results.

For cam degreeing and precise timing work, the timing version features a dedicated 1-inch threaded boss and locking nut, allowing a degree wheel to be mounted securely with confidence.

Key Features

• One-piece 4140 steel construction for maximum strength and durability
• 1/2-inch drive compatible with standard breaker bars, ratchets, and torque wrenches
• Black oxide coating for corrosion resistance and long service life
• Precision-machined for a guaranteed tight fit on the crank snout and keyway
• Optional timing version includes a 1-inch threaded boss and locking nut for secure degree wheel mounting

Why Choose the HRB RB / SR Crank Socket?

Precision engine work demands a crank socket that fits properly and handles real torque without flex or slop. The HRB RB / SR Crank Socket delivers smooth, controlled crank rotation while protecting the crank snout and keyway from damage.

Whether you’re dialling in cam timing, installing a harmonic balancer, or assembling a full race engine, this tool provides the control and confidence trusted by professional engine builders and performance workshops.

Compatible with Nissan RB and SR engine families, including RB20DET, RB25DET, RB26DETT, and SR20DET, this socket is ideal for complete engine builds, timing setup, and high-performance maintenance. The crank turn-over variant is also included in the HRB RB Engine Build Kit.