Screwdriver Bit KS Tools 911.5135 Phillips PH 4 30mm

The KS Tools 911.5135 screwdriver bit is a precision replaceable tip designed for use with powered or manual bit holders. It has a Phillips PH 4 geometry and a 30 mm overall length, providing a compact working profile for access in tighter assemblies. Made of steel and weighing approximately 10 g, the bit is intended for accurate driving of PH4 fasteners where controlled torque and repeatable engagement are required.

Advantages

This Phillips PH 4 bit offers a defined cross-tip profile that promotes positive engagement with compatible screws and reduces cam-out when used with the correct driver and technique. The 30 mm length balances reach and control, making the bit suitable for both handheld and powered drivers while remaining easy to position in confined spaces. Its steel construction provides the hardness needed for routine fastening tasks and contributes to a lightweight overall tool kit.

Suitable for

• Driving and removing Phillips PH 4 screws in assembly and maintenance tasks
• Use in compact or recessed screw locations where a 30 mm bit length is advantageous
• Integration into bit sets, screwdriver handles, and cordless or electric drivers with standard bit holders

When it may not be suitable

This single PH4 bit is not intended to replace a full assortment of tips; tasks requiring different tip sizes or types will need additional bits. It may not be suitable for heavy industrial applications that demand impact-rated or specially hardened bits designed for high-torque impact drivers.

Key specifications

• Tip type: Phillips PH 4
• Length: 30 mm
• Material: steel
• Weight: approximately 10 g

How to use

Insert the screwdriver bit into a compatible bit holder or chuck until it seats securely. Select a driver or power tool with torque settings appropriate for the fastener and material. Apply steady axial pressure and rotate at a controlled speed to engage the PH 4 screw head. For powered drivers, start at low speed to ensure correct alignment, then increase speed as needed while monitoring torque to avoid damage to the screw or surrounding material.

What to consider before purchase

• Confirm that the fastener heads you will work with are Phillips PH 4 size.
• Check compatibility of your bit holder, screwdriver handle, or power driver with a 30 mm bit length.
• Consider whether you need impact-rated or hardened bits for high-torque or industrial applications.

Usage recommendations

For best results, use the bit with the correct sized PH4 driver and appropriate torque settings. Store in a bit holder or rack to protect the tip geometry and inspect regularly for wear; replace the bit when signs of rounding or damage appear to maintain reliable screw engagement.