100pcs M35 Stainless Steel Cobalt Drill bit Set 1mm, 1.5mm, 2mm, 2.5mm, 3mm,20pcs for Each, Micro Drill bit for Wood, Metal, Steel, Plastic, Aluminum

Material: HSS titanium cobalt 5%. Angle point: 135 degrees. Flute type: spiral. Shaft type: cylinder shaft. Dimensions include: 1.5 mm, 2.0 mm, 2.5 mm, 3 mm. Titanium Cobalt High Speed Steel: Titanium cobalt high-speed steel is better suited for hardening materials. Particularly successful in cutting carbides such as stainless steel, cast iron, super alloys, titanium alloys.

• 【Combination Set】 Total 100 pieces cobalt drill bit set, including size: 4 most commonly used sizes [1.5mm, 2.0mm, 2.5mm, 3mm].
• 【HIGH QUALITY MATERIAL】. Industrial grade HSS 6542 drill set, which is harder than 4241 HSS used in other similar drill sets. 5% Cobalt HSS M35 increases the service life compared to normal drill bits. Strong and durable!
• 【Smooth Design】 135 ° self-centering tip, uniform pressure, hardened and polished to form a sharp cutting edge. Precision grinding process provides a smooth surface and high grinding accuracy, so you can easily drill holes.
• 【Chip Flute】 Classic humanized double spiral flute design. 2 Grooves help remove chips and debris from the drill bit, reducing friction and heat for a faster, cooler drilling process.
• 【Professional and widely used】. Cobalt high speed steel is more suitable for hardening materials. Ideal for cutting stainless steel, steel and cast iron as well as wood, aluminum alloy and other softer metals. ×Not suitable for glass or ceramic materials. ×Does not apply to high carbon steel and heat treated steel.