1. Integrated design: Double function bits with a 118° drill point and 60° thread angle; completes hole creation and M3 M10 metric threading in a single operation; reduces tool change time by 70% during repairs and machine protection systems for automotive brake calipers. 2. Surface treatment: TiN (Titanium Nitride) coating (2 3m thickness) with 2800 HV hardness; extends tool life 2.5× compared to standard HSS when machining zinc alloy (3 5mm thickness) and 6061 aluminum extrusions in CNC machining centers. 3. Precise thread geometry: Ground thread profile with ±0.05 mm pitch accuracy; produces clean threads with 4H 6H tolerances in copper pipe joints and mild steel angles; includes a 1.5 2.5 mm chamfer depth for securing fasteners in furniture assembly lines. 4. Material compatibility: HSS (62 64 HRC) heat treated substrate; processes materials up to 150 BHN hardness, including plastic composites, soft iron plates, and brass electrical components; excludes hardened steels as per product specifications. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin