Drill bit set Abraboro HSS cylindrical 5.3 mm, 10 pcs (AB00010530)

Abraboro HSS cylindrical 5.3 mm drill bit set contains ten identical high-speed steel drill bits designed for accurate and repeatable 5.3 mm holes. These cylindrical shank bits are intended for general workshop and industrial use where drilling in metals and common engineering materials is required. Supplied as a 10-piece pack, the set simplifies inventory and reduces downtime when multiple holes of the same diameter are needed.

Advantages

The HSS construction provides good hardness and heat resistance for cutting metal and mixed materials. Cylindrical shanks ensure compatibility with standard chucks and collets, allowing quick changeover and reliable clamping. A uniform 5.3 mm diameter across all ten pieces makes the set especially useful for repetitive tasks, maintenance jobs, and small production runs where consistent hole size is critical.

Suitable for

• Drilling steel, cast iron and non-ferrous metals
• General-purpose workshop and maintenance drilling
• Small-series production requiring identical hole diameters
• Tooling operations where quick bit replacement is needed

Key specifications

• Material: High-speed steel (HSS)
• Shank type: Cylindrical shank suitable for standard chucks and collets
• Diameter: 5.3 mm
• Quantity: 10 identical drill bits
• Intended use: Metalworking and general-purpose drilling

How to use

Select an appropriate drilling speed and coolant for the material being worked; HSS bits perform best with moderate speeds and cutting fluid when drilling metals. Secure the workpiece firmly, and clamp the cylindrical shank in a compatible chuck or collet. Begin drilling with a steady feed, applying consistent pressure without forcing the bit; periodically withdraw the bit to clear chips and reduce heat buildup. For repeated holes, replace bits as they wear to maintain dimensional accuracy.

Usage recommendations

For prolonged tool life when drilling steel, use cutting fluid and moderate speeds. Inspect bits regularly for wear or chipping and replace worn bits from the pack to preserve hole quality and safety.