3 Pcs Cobalt Steel Single-end Countersink Bit Set - M35 HSS Cobalt Coated 90 Degree Chamfer Tools for Metal, Wood, 2-5, 10-15, 15-20mm

Features: Constructed from M35 high-speed steel with cobalt coating, these countersink bits offer superior hardness and heat resistance, ensuring durability and consistent performance on hard metals like stainless steel, cast iron, and non-ferrous materials. The 90-degree cutting angle and deep flutes provide smooth, vibration-free drilling with efficient chip ejection, reducing heat buildup and enabling continuous operation in both professional and DIY settings. Specifications: Material: m35 High-Speed Steel with Cobalt Coating Color: metallic Size: fit for 2-5, 10-15, 15-20mm Package includes: 3 x Cobalt Countersink Drill Bits (each in individual plastic sleeve)

• Material Construction: crafted from M35 high-speed steel with advanced cobalt coating, these bits demonstrate enhanced hardness and wear resistance; This composition ensures extended service life when drilling tough materials like stainless steel while maintaining sharpness
• Precision Ground Cutting Edges: features accurately ground cutting edges that create clean, burr-free chamfers with a consistent 90-degree angle; This engineering enables smooth drilling operations on both flat and curved surfaces without vibration or wandering
• Enhanced Heat Resistance: the cobalt composition effectively dissipates heat during drilling operations, reducing edge degradation and wear under high-temperature conditions; This makes the bits suitable for various materials including aluminum, copper and wood
• Efficient Chip Removal System: deep spiral flute design facilitates effective chip ejection, preventing clogging and minimizing heat buildup; This allows for continuous drilling operations with reduced need for frequent bit extraction and cleaning interruptions
• Protective Packaging Solution: each bit arrives in individual plastic sleeves that provide secure protection during storage and transportation; This packaging solution ensures the cutting edges remain undamaged and ready for immediate use upon arrival