Bosch HSS-G Twist Drill Bit 1 mm, 2-Piece Set

The Bosch HSS-G twist drill bit is a precision-engineered tool designed for high-performance drilling in metal. With a 1 mm diameter, this high-speed steel bit provides exceptional durability and accuracy for both professional and DIY projects. The ground flute design ensures efficient chip removal, while the 135-degree split-point tip allows for immediate drilling without the need for center punching. This 2-piece set is a reliable solution for achieving clean, precise holes in various metal surfaces.

Advantages

This drill bit features a self-centering split-point tip that prevents the bit from wandering on the material surface, ensuring high accuracy during the start of the drilling process. The precision-ground HSS construction allows for a significantly faster drilling rate compared to standard bits, while simultaneously reducing the required feed pressure. Its robust design ensures a long service life and consistent performance even when working with harder materials, making it a dependable choice for demanding metalworking tasks.

Suitable for

• Drilling in alloyed and non-alloyed steel
• Working with cast iron and cast steel
• Processing non-ferrous metals
• Drilling into hard plastics
• Precision metalworking applications

When it may not be suitable

This 1 mm drill bit is not intended for drilling into masonry, concrete, or stone, as the high-speed steel material is not designed for abrasive mineral surfaces. Additionally, due to its small diameter, it is not suitable for heavy-duty drilling in thick metal plates where high torque could cause the bit to snap.

Key specifications

• Diameter: 1 mm
• Material: High-speed steel (HSS)
• Tip angle: 135 degrees
• Shank type: Cylindrical
• Standard: DIN 338
• Quantity: 2 pieces

How to use

Ensure the drill bit is securely fastened in the drill chuck before starting. For best results, use a drill stand or a stable drill driver to maintain a perpendicular angle to the workpiece. Apply steady, moderate pressure and maintain a consistent speed appropriate for the material being drilled. Using a cutting oil can help reduce friction and heat, further extending the life of the bit and improving the finish of the hole.

What to consider before purchase

• Verify that your drill chuck is compatible with a 1 mm cylindrical shank.
• Ensure the material hardness is within the recommended range for HSS-G bits.
• Consider the fragility of 1 mm bits and use caution to avoid lateral pressure that may cause breakage.

Usage recommendations

Always wear appropriate eye protection when drilling metal. Keep the drilling speed controlled to prevent overheating, which can dull the cutting edge of the bit prematurely.