6pcs/set Cobalt PCB Drill Bit Set Spiral Screw Metric Composite Tap Drill Bit Set for Cutting Drilling Polishing

! ! One pack: 6 pieces

[Size Combination]

The 6 most commonly used sizes can meet all your needs. This drill bit set fits most electric drill bits currently on the market and comes with a portable plastic bag for easy storage and organization.

【M35 Cobalt High-Speed ​​Steel】 This industrial-grade 6542 high-speed steel drill bit is harder than the 4241 HSS used in other similar drill bits. These drill bits also contain 5% cobalt, which increases wear resistance and durability.

[Full-Grinding Process and 135-Degree Split Point]

The fully ground helical flute quickly reduces friction and heat, resulting in faster and cooler drilling performance. The straight shank features a 135-degree split point to prevent wear and make drilling more precise and faster. No center hammer required.

【Multiple Applications】 It's suitable for cutting hard metals such as stainless steel, steel, and cast iron, as well as wood, aluminum alloy, and other softer metals, including tiles, concrete, ceramic tiles, brick, wood, plastics, glass, masonry, and more.

【Efficient Operation】 The product has sharp edges and high drilling efficiency. The product center has sharp serrations, allowing the drill to continue drilling horizontally after finishing the hole.

Applications Suitable for drilling and cutting wood, soft metals, aluminum plates, iron, etc.

Specifications 3-8mm Titanium Coated HSS Drill Bit Set 3mm x 1 4mm x 1 5mm x 1 6mm x 1 6.5mm x 1 8mm x 1

Made in China Model: 6PCS High-Speed ​​Steel Serrated Drill Bits Type: Drill Material: 4241 High Speed ​​Steel Weight: 75g Full Length: 60-94mm Shank Diameter: 3-8mm Blade Diameter: 3-8mm Product Name: Sawmill