The Park Tool PH-4 is the 4 mm P-handle hex wrench, dedicated to one of the sizes you meet most often on a modern bike. The Park Tool PH-4 hex wrench is made for M5 socket-head bolts, very common on the cockpit and accessories, and deserves a permanent place next to the repair stand.
On stems, controls and bottle cages you often work through several identical bolts in sequence, and this is where the P-handle shows its advantage: you spin the wrench quickly with your fingers and finish with controlled palm pressure. The short, straight chamfered side is for high-torque tightening, while the long ball-end side reaches bolts covered by cables or components. High-torque industrial steel shaft, durable nylon handle.
Where to use the Park Tool PH-4 hex wrench
- M5 socket-head bolts, common on many stems.
- Brake lever and shifter clamps with 4 mm hex bolts.
- Bottle cage bolts and many accessory bolts.
- Collars and clamps that use 4 mm hex bolts.
Why choose Park Tool PH-4
- A size used on almost every job: having a dedicated one saves time.
- Fast spinning through sequences of identical bolts, such as a stem faceplate.
- Ball end to reach bolts hidden behind cables and housing.
- Chamfered tip for full contact in the hex while tightening.
- Great as a second 4 mm wrench alongside the PH-1.2 set.
If you work on cockpits and accessories every day, the Park Tool PH-4 4 mm hex wrench is the tool that always stays within reach. On components with a specified torque, finish with a torque wrench.
TECHNICAL SPECIFICATIONS
General
- Item code: PH-4
- Hex size: 4 mm
- Short-end tip: straight chamfered, for high torque
- Long-end tip: ball end
- Handle: offset P-handle
Materials
- Wrench: high-torque industrial steel
- Handle: durable nylon, ergonomic shape
The Park Tool PH-4 is the 4 mm P-handle hex wrench, dedicated to one of the sizes you meet most often on a modern bike. The Park Tool PH-4 hex wrench is made for M5 socket-head bolts, very common on the cockpit and accessories, and deserves a permanent place next to the repair stand.
On stems, controls and bottle cages you often work through several identical bolts in sequence, and this is where the P-handle shows its advantage: you spin the wrench quickly with your fingers and finish with controlled palm pressure. The short, straight chamfered side is for high-torque tightening, while the long ball-end side reaches bolts covered by cables or components. High-torque industrial steel shaft, durable nylon handle.
Where to use the Park Tool PH-4 hex wrench
- M5 socket-head bolts, common on many stems.
- Brake lever and shifter clamps with 4 mm hex bolts.
- Bottle cage bolts and many accessory bolts.
- Collars and clamps that use 4 mm hex bolts.
Why choose Park Tool PH-4
- A size used on almost every job: having a dedicated one saves time.
- Fast spinning through sequences of identical bolts, such as a stem faceplate.
- Ball end to reach bolts hidden behind cables and housing.
- Chamfered tip for full contact in the hex while tightening.
- Great as a second 4 mm wrench alongside the PH-1.2 set.
If you work on cockpits and accessories every day, the Park Tool PH-4 4 mm hex wrench is the tool that always stays within reach. On components with a specified torque, finish with a torque wrench.
TECHNICAL SPECIFICATIONS
General
- Item code: PH-4
- Hex size: 4 mm
- Short-end tip: straight chamfered, for high torque
- Long-end tip: ball end
- Handle: offset P-handle
Materials
- Wrench: high-torque industrial steel
- Handle: durable nylon, ergonomic shape
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