ريشة الثقب المعدنية بوش قياس (3mm) المصنوعة من الفولاذ سريع القطع (HSS-G) تباع (Per Pkt)

Key specs: High-Speed Steel (HSS) construction for long life, precision ground tip for clean starts, 3mm diameter for precise holes, cobalt alloy coating for heat resistance and reduced wear, optimized for metal drilling, flute design for efficient chip removal, and sold in a pack for value.

This 3mm HSS-G drill bit is designed for drilling metals such as steel and iron and can work well with aluminum and other metal materials, delivering clean holes with good durability.

Secure the workpiece, mark the hole location with a center punch, and start with a light, steady feed. Use a cutting fluid or lubricant if possible, drill at a moderate pace to avoid overheating, and favor a drill press for precision while hand drills can work with careful control. Let the bit cut gradually rather than forcing it.

Keep the cutting edge clean and free of chips, wipe the bit after use, avoid overheating by using proper speed and lubrication, and store the bit in its pack or a protective case to prevent edge damage.

Wear safety glasses or a face shield, use protective gloves if appropriate, secure the workpiece firmly, keep hands away from the drill bit, and ensure the drill is off before changing bits or making adjustments.

You can explore other sizes in the Bosch HSS-G metal drill bit range on Fepy: 2mm, 4mm, and 5mm variants. 2mm: https://fepy.com/product/bosch-hss-g-metal-drill-bit-2mm-per-pack 4mm: https://fepy.com/product/bosch-hss-g-metal-drill-bit-4mm-per-pack 5mm: https://fepy.com/product/bosch-hss-g-metal-drill-bit-5mm-per-pack

The 3mm bit offers precision for small holes in metal. If you need a smaller diameter, the 2mm variant provides a finer hole; for larger holes, the 4mm and 5mm variants are available. All are Bosch HSS-G and share similar build quality, with differences mainly in hole size and application fit.

Yes, it features a cobalt alloy coating that improves heat resistance and reduces wear, helping the bit last longer under metallic cutting conditions.

Attach the bit securely in the chuck, center-punch the workpiece, clamp the workpiece firmly, start with a light feed, and use steady pressure. If possible, use cutting fluid and opt for a drill press for higher accuracy. Avoid excessive speed or pressure that can overheat and dull the bit.

Buying per pack ensures you have a spare bit ready when one wears down or breaks, saving downtime on projects and providing better overall value for ongoing metalworking tasks.