Twist Drill Bit Bosch HSS PointTeQ 4.8 mm, right-hand rotation, 1 pc

Bosch HSS Twist Drill Bits PointTeQ are high-speed steel twist drills designed for general metalworking and workshop use. The bits are produced to DIN 338 standards with a Type N flute geometry and a 135° point angle. A black-oxide coating on the flute improves chip evacuation, while the body is manufactured for high elasticity to reduce the risk of breakage, particularly on diameters below 6 mm. The product is supplied as a single drill bit in blister packaging and is intended for right-hand rotation in standard drilling machines.

Advantages

The elastic HSS body reduces the likelihood of breakage during drilling, especially for smaller diameters. The 135° tip and Type N flute geometry provide stable centring and controlled cutting in metals. Black-oxide coated flutes enhance chip removal, improving drilling efficiency and helping maintain hole quality.

Suitable for

• Drilling holes in various metals (general steel, non-hardened alloys)
• Workshop and maintenance tasks requiring standard twist drills
• Bench drills and portable drills with right-hand rotation

When it may not be suitable

This HSS twist drill is intended for general metalworking and is not optimized for hardened steels, ceramics, or masonry. For very hard materials or applications requiring carbide tips or special coatings (e.g., TiN, TiAlN), choose a drill specifically designed for those materials. Extremely large diameter drilling above typical workshop sizes may require different tool types.

Key specifications

• Material: High-speed steel (HSS)
• Point angle: 135°
• Flute type: Type N (DIN 338 flute geometry)
• Coating: Black-oxide on flute
• Rotation direction: Right-hand rotation
• Packaging: Blister
• Quantity: 1 piece

How to use

Secure the workpiece and select the appropriate drilling speed for the material and drill diameter. Fit the drill bit into the chuck with correct alignment and tighten securely. Use steady feed pressure without excessive force to allow the HSS bit to cut and the black-oxide flutes to evacuate chips. For improved performance, periodically clear chips and use cutting fluid when drilling metal to extend tool life and improve hole finish.

What to consider before purchase

• Material to be drilled (avoid hardened steels, masonry, and ceramics with this HSS bit)
• Required hole diameter and whether a single-piece blister meets your needs
• Compatibility with your drill (right-hand rotation and chuck capacity)

Usage recommendations

Use cutting fluid for metal drilling, maintain moderate speeds and steady feed, and clear chips frequently to reduce heat and prolong drill life.