Pilot Drill Bit For 18 Diamond Core Bits

Diameter: Ø10mm
Total Length: 200mm
Classification: Industrial (Blue)

A Pilot Drill Bit for 18 Diamond Core Bits is an indispensable component designed to optimize the performance oflarge-diameter core drilling operations, particularly those utilizing dry-cut diamond core barrels. Its fundamentalpurpose is to function as a starting and centering guide for the main cutting tool. This small, hardened bit is thefirst part to penetrate the material, ensuring the much larger, heavier core barrel remains perfectly aligned andstationary until its diamond segments are fully engaged.

This specialized accessory is typically constructed from high-strength steel or carbide for superior durability andwear resistance. It's engineered with a tapered shank for quick and secure insertion into the core drill'sadaptoroften compatible with common connection systems like Hex and SDS Plus adaptors. This tapered design holdsthe pilot bit firmly in place during operation but allows for its eventual removal, often with the help of a driftkey, once the core bit has established its cut.

The use of a pilot bit dramatically enhances the quality and efficiency of the drilling process. By eliminating thetendency for the core bit to "walk" or wander across the surface, it ensures a clean, accurately centered hole rightfrom the start. This not only improves drilling precision but also minimizes damaging side-load forces on the corebit and the drill rig, thereby extending the overall life of both the diamond tooling and the machine.

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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