System 4 magnetic extension blade for Bit handle for 4mm drive W
These extensions are magnetic bit holders for the System 4 Micro Precision bits from Wiha.
They do not fit a standard 1/4" bit.
Micro Precision Bits on 4mm Hex Drive
Hardened for Extreme Durability
Bits of Exclusive CRM-72 Tool Steel
Handle uses Ball Retainer Not magnetic
Small Sizes, Light weight, Compact.
Use Bits in Handle or extension.
Standard Extension adds 4" to length.
Magnetic Bit Extension #75901