Diameter: Ø8mm
Total Length: 74mm
Classification: Industrial (Blue)

A Drift Key for 8 Diamond Core Bits is a specialized, durable tool essential for the safe and efficient management
of $8$-inch (or $203.2text{ mm}$) nominal diameter diamond core bits. This critical accessory is specifically
designed to interact with the slot or opening located at the connection end of the core barrel. Its design provides
the necessary mechanical leverage to perform key operational and maintenance tasks.

The drift key’s primary function is twofold. Firstly, it’s used to apply leverage to extract core bits that have
become stuck, jammed, or overtightened in the core drilling machine’s chuck or spindle. This is a common issue in
high-torque drilling and, without the correct tool, attempting removal can damage the rig components or the bit
itself. Secondly, it is used for the crucial task of securely tightening a new or re-attached core bit onto the
drill barrel, ensuring a stable, wobble-free connection for optimal drilling performance and safety.

Typically manufactured from high-strength alloy steel, the drift key is built to provide the resilience and robust
force needed to withstand the significant torsion and impact involved in these operations. Its size and profile are
precisely engineered to fit the specifications of $8$-inch core bits, ensuring maximum contact and minimizing the
risk of slippage or damage to the bit’s threading or connection collar. Ultimately, this makes the drift key an
indispensable safety and maintenance tool for professional core drilling contractors.

Application:

• Fit into the diamond core bits.
• The Drift key is a wedge used to remove the pilot drill from the Dry Cut Diamond Core Drill adaptor with a hammer. See illustration below.
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• DIY