Stanley 5285903 HSS-CNC Metal Drill Bit Set, 1 mm, 2 Pieces

The Stanley 5285903 HSS-CNC Metal Drill Bit Set consists of two high-precision drill bits engineered for accurate drilling in metal surfaces. With a diameter of 1 mm and a total length of 34 mm, these bits are manufactured using high-speed steel (HSS) and CNC machining processes to ensure consistent geometry and durability. The cylindrical shank design allows for compatibility with standard drill chucks, making them a reliable choice for fine metalworking tasks where precision is paramount.

Advantages

These drill bits offer exceptional performance due to their HSS-CNC construction, which provides enhanced heat resistance and structural integrity during operation. The precise 1 mm diameter allows for clean, burr-free holes in various metal types, including stainless steel. Their compact size and robust design minimize the risk of breakage, ensuring a longer service life even when performing repetitive drilling tasks. The set provides a convenient solution for users who require small-diameter holes with high accuracy.

Suitable for

• Precision metal drilling
• Creating pilot holes in metal sheets
• Fine mechanical and hobbyist metalworking
• Drilling into stainless steel and other ferrous metals

When it may not be suitable

These drill bits are not intended for drilling into masonry, concrete, or thick wood, as the small 1 mm diameter is optimized specifically for metal applications. Using them on inappropriate materials may lead to immediate bit breakage or poor hole quality.

Key specifications

• Diameter: 1 mm
• Total length: 34 mm
• Material: High-speed steel (HSS)
• Shank type: Cylindrical
• Quantity: 2 pieces

How to use

To use the Stanley HSS-CNC drill bits, ensure the bit is securely fastened in the drill chuck. Mark the exact center point of the hole to be drilled to prevent the bit from wandering. Apply steady, light pressure and maintain a consistent speed, as the small diameter of the bit makes it sensitive to excessive force. It is recommended to use a cutting fluid or lubricant when drilling into hard metals to reduce friction, prevent overheating, and extend the life of the drill bit.

What to consider before purchase

• Verify that your drill chuck can securely hold a 1 mm diameter shank.
• Ensure the material thickness is compatible with the 34 mm length of the bit.
• Consider purchasing extra sets if working on abrasive materials that may dull the cutting edge.

Usage recommendations

Always wear appropriate eye protection when drilling metal to prevent injury from flying debris. Maintain a perpendicular angle to the workpiece to avoid snapping the thin drill bit.