GMTOOLS Step Drill Bit Set, 6 Pcs Titanium High Speed Steel Unibit Drill Bits, Stepped Up Bits & Automatic Center Punch for Sheet Metal, DIY Lovers with Aluminum Case, Total 50 Sizes for Multiple Hole

Key features

• Titanium Coating: Industrial HSS construction, coated by titanium nitride ensures maximum durability and sharpness, can reduces the friction, runs cooler
• Product Feature: 118° Split point tip accelerates cutting speed while preventing angled walking away from center. The two flute design provides a smoother cutting, chip removal quickly
• Drilling Different Size Holes: The bits set include 5 standard bits that can replace 50 individual drill bits. Great metal drill bit for metal, wood, plastic board. Suitable for home DIY, handyman, professionals
• Automatic Center Punch: The punch delivers a high-impact strike when pressed against surface, S2 steel spring punch provide accuracy and precision
• Convenient Storage: All the cone bit come in a well organized case for easy transport and storage