Milwaukee Metal Drill Bit HSS-G 12.5 mm (5 Pack)

Professional machinists and metal fabricators reach for this Milwaukee HSS-G twist drill bit when they need clean, accurate holes in steel plate, angle iron, or cast components. The 12.5 mm diameter is a common size for clearance holes for M12 bolts, and the split point starts on contact without wandering, even on curved or uneven surfaces.

Key specifications

• Drill bit type: HSS-G (High-Speed Steel Ground)
• Diameter: 12.5 mm
• Material: High-Speed Steel (HSS)
• Standard: DIN 338
• Shank type: Cylindrical
• Point angle: 135°
• Point type: Split Point (Self-Centring)
• Flute type: Right-hand spiral
• Total length: 151 mm
• Working length: 101 mm
• Cutting direction: Right-hand
• Tolerance: h8
• Surface finish: Bright / Polished
• Manufacturing process: Ground
• Pack quantity: 5 bits

Why choose it

The HSS-G construction with a ground finish delivers a sharp, precise cutting edge that resists wear and heat build-up. The 135° split point reduces thrust pressure and prevents the bit from skating across the workpiece, so you can start holes accurately without a centre punch. Suitable for a wide range of metals including alloyed and non-alloyed steel, cast iron, non-ferrous metals, and even plastics.

Ideal use cases

• Drilling clearance holes for M12 bolts in structural steel
• Creating precise holes in aluminium and copper sheet
• Maintenance and repair work on machinery and equipment
• Fabrication of metal brackets, frames, and supports
• General workshop drilling in mild steel and cast iron

Good to know

This pack contains five identical 12.5 mm drill bits, so you always have a sharp spare on hand. The cylindrical shank fits standard three-jaw chucks up to 13 mm. For best results, use cutting fluid on steel and run at the recommended speed for the material. Store the bits in a dry place to prevent corrosion.