CK Tools T4925MOD1 VDE Interchangeable Slim Blade MOD1 | 1000V Insulated Electrician's Screwdriver Blade

The CK Tools T4925MOD1 is a professional VDE insulated interchangeable slim screwdriver blade designed for use with the CK Tools T4925 interchangeable screwdriver system. Featuring a MOD1 (PlusMinus/Modulo 1) tip, it is specifically designed for electrical terminals that combine the advantages of both slotted and Pozidriv drive profiles. The slim insulated shaft provides easy access to recessed terminal screws commonly found in modern consumer units, RCBOs, MCBs, RCBs, contactors, terminal blocks and switchgear. Every blade is VDE approved and individually tested to 10,000V, making it suitable for safe working on live electrical systems up to 1,000V AC.

Manufactured from toughened alloy steel, the T4925MOD1 delivers excellent strength, durability and precision for everyday professional use. Its quick-lock interchangeable design allows electricians to change blades quickly without compromising security or safety, helping reduce the number of screwdrivers required while maintaining full functionality. This makes it an ideal replacement or spare blade for electricians who already use the CK Tools interchangeable screwdriver system.

Whether you're installing consumer units, wiring distribution boards, terminating circuit protection devices or carrying out maintenance work, the CK T4925MOD1 provides safe, accurate and reliable fastening of MOD1 electrical terminal screws.

Features & Benefits

• Professional VDE insulated interchangeable screwdriver blade
• MOD1 (PlusMinus) tip designed for electrical terminal screws
• Compatible with the CK Tools T4925 interchangeable screwdriver system
• Slim insulated shaft for access to recessed terminals
• VDE approved and individually tested to 10,000V
• Safe for live working up to 1,000V AC
• Quick-lock mechanism for fast blade changes
• Toughened alloy steel construction for long service life
• Precision-machined tip for secure screw engagement
• Ideal as a replacement or spare blade for professional electricians

Technical Specifications

• Manufacturer: CK Tools
• Model: T4925MOD1
• Product Type: VDE Interchangeable Screwdriver Blade
• Range: T4925 Interchangeable Slim Blade System
• Tip Type: MOD1 (PlusMinus / Modulo 1)
• Blade Length: 80mm
• Overall Length: 130mm
• Blade Material: Toughened Alloy Steel
• Blade Style: Slim insulated shaft
• Interchangeable: Yes
• Compatible Handle: CK Tools T4925 High Torque and Precision Handles
• Insulation Rating: 1,000V AC
• Test Voltage: 10,000V
• Standards: IEC 60900, EN 60900, VDE 0682-201
• GTIN: 5013969244540

Frequently Asked Questions

What is a MOD1 screwdriver blade?

A MOD1 (PlusMinus) blade combines the benefits of a slotted and Pozidriv profile, providing a more secure fit in terminal screws commonly used on electrical accessories and protective devices. It helps reduce cam-out and minimises damage to screw heads.

Which screwdriver handles is the T4925MOD1 compatible with?

The blade is designed exclusively for the CK Tools T4925 interchangeable VDE screwdriver system, fitting both the high-torque and precision handles using the quick-lock mechanism.

Is this suitable for live electrical work?

Yes. The blade is VDE approved, individually tested to 10,000V, and certified for safe working on live systems up to 1,000V AC when used with a compatible CK Tools insulated handle.

Who Needs This Product?

The CK Tools T4925MOD1 is ideal for:

• Professional electricians
• Electrical contractors
• Industrial electricians
• Commercial installers
• Domestic electricians
• Control panel builders
• Maintenance engineers
• Renewable energy installers
• Electrical testing engineers
• Apprentice electricians

What Is This Used For?

The CK Tools T4925MOD1 is designed for tightening and loosening MOD1 electrical terminal screws while providing insulated protection when used with a compatible VDE handle.

Typical applications include:

• Consumer unit installations
• RCBO and MCB terminals
• Distribution boards
• Switches and sockets
• Industrial switchgear
• Contactors and relays
• Terminal blocks
• Control panels
• Electrical maintenance
• Commercial and industrial installations

Three Reasons Electricians Recommend This

1. Designed for modern electrical terminals – The MOD1 tip provides a secure fit in combination-drive terminal screws, reducing slipping and improving torque transfer.
2. Maximum safety – VDE approved and individually tested to 10,000V for safe working up to 1,000V AC when used with the compatible insulated handle.
3. Flexible interchangeable system – Quick-lock blade changes allow electricians to carry fewer tools while maintaining the correct screwdriver profile for every job.

About CK Tools

CK Tools has been manufacturing professional hand tools for over 100 years and is recognised as one of the UK's leading brands for electricians and trade professionals. Its products are engineered to deliver outstanding safety, precision and durability, with extensive testing to meet the demands of everyday professional use. From VDE insulated screwdrivers and pliers to crimpers, cutters and specialist installation tools, CK Tools is trusted by electricians worldwide for quality and reliability.

About the VDE Interchangeable Slim Blade Range

The CK Tools VDE Interchangeable Slim Blade range has been developed to give professional electricians maximum flexibility while reducing the number of individual screwdrivers they need to carry. The range includes slotted, Pozidriv and MOD (PlusMinus) interchangeable blades that fit the CK Tools T4925 handle system. Manufactured from toughened alloy steel with slim insulated shafts, every blade is individually tested to 10,000V and certified for safe working up to 1,000V AC, providing safe access to recessed terminals in modern electrical equipment.

Note: Some images and pictures are for reference only. The item may differ from the image/picture due to manufacturer's change. Should you require the exact item in the picture, please call or email us to enquire.

Need more detailed specs?

• T4925MOD1 Datasheet (663.59 kB)