Accurate drilling in tough metals
- Precise starts without walking: The 135° split point allows you to start drilling accurately without the bit slipping across the material surface.
- Rapid removal of chips: The specialized flute geometry ejects hot metal chips quickly to dissipate heat and extend the overall working lifespan.
- Strong core resists breakage: The reinforced web structure of this HSS-G metal drill bit withstands high feed pressure and torque under heavy loads.
Drill swiftly and reliably into metal with the Milwaukee Thunderweb hss-g 4.2 mm drill bit. The self-centering 135° split point bites into the material instantly without walking across smooth surfaces, eliminating the need for a center punch. Designed with a thickened conical Thunderweb core, this drill bit withstands high feed pressure and torque under load to prevent breakage. Its specialized flute geometry rapidly ejects hot metal chips to dissipate heat effectively in steel, sheet metal, and cast iron. Featuring a 43 mm working length and a straight cylindrical shank, it fits any standard 3-jaw drill chuck. This practical 10-piece pack is ideal for precise M5 pilot tapping holes and secure rivet fastenings.
Product description
- THUNDERWEB design is characterised by a conical shaped web which gets thicker towards the back of the drill bit (1-13mm). Standard drill bits have a constant thickness throughout their length (13.5-20mm). Even at the narrowest point the THUNDERWEB core is thicker than that of a standard drill bit.
- Parabolic web cross section: Large web thickness. Strength built in.
- Flute geometry - THUNDERWEB flute form ejects hot chips rapidly. Dissipates heat better increasing life time.
- 135° Split point - Precision starting, drill bit won't walk on material surface.
- Polished finish reduces friction and extends drill bit life.
- Impact resistant ABS case with added rubber corner protection.
- Accepts higher feed pressure and torque equalling less breakages.
