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Bosch PRO Metal HSS-G Twist Drill Bit - 4 mm

Bosch PRO Metal HSS-G Twist Drill Bit - 4 mm

The Bosch PRO Metal HSS-G Twist Drill Bit is designed for high efficiency and longevity, lasting u...

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BradfordsBosch - HSS Drill Bit - 4.5mm - Precision Ground
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eBayBosch Drill bits PRO Metal HSS-G Twist Drill Bit 13x101x151 mm 2608577666
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Product Information

Full details

The Bosch PRO Metal HSS-G Twist Drill Bit is an essential tool for professional construction workers and installers who demand high efficiency and precision when drilling into metal. Built to last up to two times longer than standard PointTeQ bits, this high-speed steel accessory excels in demanding tasks like steel beam drilling, rivet preparation, and anchor installation; however, users should note it is specifically optimized for metal applications and may require different bits for masonry or specialized ceramics.

All features

Model Part Number2608577639
BrandBosch

Extended Product Information

FAQs

Can I use this bit on stainless steel?

Yes, it is designed for metal applications, though you should use a slower drilling speed and plenty of cutting fluid for harder alloys.

Is this bit compatible with SDS-plus chucks?

No, this bit has a cylindrical shank designed for standard three-jaw chucks. It will not fit directly into an SDS-plus hammer drill chuck.

Does this bit come in other sizes?

Yes, the Bosch PRO Metal HSS-G line is available in a wide range of diameters to suit various anchor and rivet requirements.

How do I know when the bit is dull?

You will notice increased vibration, significantly slower penetration rates, and a change in the sound of the drilling process.

Do I need a pilot hole for larger diameters?

For larger diameters, it is recommended to drill a smaller pilot hole first to reduce the axial force required and improve hole accuracy.

Troubleshooting

Bit slipping in the chuck

Ensure the three-jaw chuck is fully tightened and that the shank is free of any lubricating oil or grease.

Bit is overheating and smoking

Reduce your drilling speed and apply cutting fluid to dissipate heat more effectively.

Difficulty starting the hole

Use a center punch to create a small indentation in the metal before starting the drill to prevent the bit from walking.

Pros and Cons

Pros

  • Significantly longer lifespan than standard bits
  • High-speed steel construction ensures durability
  • Compatible with standard three-jaw drill chucks
  • Excellent for precision metalwork and steel beams

Cons

  • Not intended for use on masonry or concrete
  • Requires proper cooling/lubrication for maximum longevity
  • Limited to specific metal-cutting applications

Setup, Compatibility & Care

To install the bit, simply open the three-jaw chuck on your drill, insert the cylindrical shank, and tighten firmly to prevent slipping. Ensure the drill speed is set appropriately for the material hardness—lower speeds are generally preferred for metal to avoid overheating. To maintain the bit’s lifespan, always store it in a clean, dry organizer to prevent rust. If the bit becomes dull after extensive use, it can be professionally sharpened, but avoid overheating it during the sharpening process to maintain the material integrity.

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