Hall Tools 15M10 Hexibit Shank XCM10 HSS Metal Counter Sinks 3 Flute 90 Drill Bit, 10.4mm Head Diameter, M5 Set Screw Size

Hall Tools 15M10 Hexibit Shank XCM10 High‑Speed Steel Counter‑Sink

The Hall Tools 15M10 Hexibit Shank XCM10 HSS Metal Counter Sinks 3 Flute 90° Drill Bit is a precision machining tool designed for creating clean, accurate countersunk holes in metal. With its 10.4 mm head diameter and M5 set screw size, this bit delivers reliable performance across a wide range of industrial applications.

Key Technical Specifications

• Material: High‑Speed Steel (HSS) – offers excellent hardness, wear resistance, and durability for repeated use in metalworking.
• Head Diameter: 10.4 mm – ideal for creating a standard countersink that accommodates M5 set screws.
• Shank Type: Hexibit – the 15‑M10 hexagonal shank provides a secure fit in drill chucks, minimizing vibration and ensuring precise alignment.
• Flute Design: 3 Flutes – optimized for efficient chip evacuation while maintaining a stable cutting edge.
• Aperture Angle: 90° – the classic countersink angle that matches most standard screw heads and fasteners.
• Set Screw Compatibility: M5 – the bit’s head size is calibrated to accept M5 set screws, making it a perfect match for many assembly tasks.

Performance Characteristics

The combination of high‑speed steel construction and a precisely engineered flute geometry ensures that this countersink delivers:

• Consistent Cutting Performance: The HSS core resists heat buildup, maintaining sharpness even during prolonged use.
• Excellent Chip Removal: Three flutes provide ample space for chips to escape, reducing the risk of clogging and allowing for smoother operation.
• Stability in Drilling: The hexibit shank locks firmly into the drill chuck, minimizing wobble and guaranteeing a straight countersink.
• Versatility Across Metals: Suitable for steel, aluminum, brass, and other common metals used in manufacturing and repair.

Applications and Use Cases

This countersink is engineered to meet the demands of a variety of professional settings:

• Automotive Assembly: Creating precise mounting points for bolts and set screws in chassis components.
• Aerospace Fabrication: Preparing holes for high‑strength fasteners that require exact countersink geometry.
• Electrical Enclosures: Drilling holes for panel mounts where a clean, flush finish is essential.
• Machine Tool Maintenance: Replacing or installing set screws in gearboxes and hydraulic systems.
• Custom Fabrication Projects: Hobbyists and small‑scale manufacturers who need reliable countersinks for metal prototypes.

Installation Guidance

To achieve optimal results with the Hall Tools XCM10 countersink, follow these best practices:

1. Select the Correct Drill Size: Use a drill bit that matches the desired hole diameter for the M5 set screw (typically 4.0 mm to 4.2 mm).
2. Secure the Bit Properly: Insert the hexibit shank into a compatible drill chuck and tighten firmly to avoid slippage.
3. Maintain a Steady Speed: Operate at a moderate speed (around 2000–3000 rpm) to balance cutting efficiency with heat control.
4. Apply Light Pressure: Let the bit do the work; excessive force can cause chatter or premature wear.
5. Use Cutting Fluid When Needed: For tougher metals, a light application of cutting oil helps reduce friction and extend tool life.

Maintenance Tips

Preserve the longevity of your Hall Tools XCM10 countersink with simple upkeep routines:

• Clean After Use: Remove metal shavings from the flute edges to prevent clogging.
• Inspect for Wear: Periodically check the cutting edge for dullness or chipping; replace if necessary.
• Store Properly: Keep the bit in a dry, protected environment to avoid corrosion.

Why Choose Hall Tools XCM10?

The Hall Tools XCM10 countersink stands out due to its blend of precision engineering and robust construction. Its 10.4 mm head diameter is specifically tailored for M5 set screws, ensuring a perfect fit in most standard fastener assemblies. The hexibit shank guarantees secure mounting, while the high‑speed steel material delivers consistent performance across diverse metalworking tasks.

Whether you’re a seasoned machinist or a DIY enthusiast, this countersink offers reliable accuracy and durability that can be trusted for critical applications. Its design reflects Hall Tools’ commitment to quality, making it an indispensable addition to any professional or hobbyist toolkit.