1/4” Carbide Square Nose End Mill, 4 Flutes, HRC 65 Deg DLC Coating CNC End Mill Bits Set for Aluminum Alloy,Carbon Steel, Alloy Steel, Cast Iron, 5 Pack for DIYers & Professionals

This router bit features standard specifications with a 1/4-inch shank and cutting diameter, a 3/4-inch cutting length, and is compatible with most CNC equipment. Its 4-flute spiral structure, combined with a DLC coating and tungsten steel material, offers both high-efficiency cutting and wear resistance. It is widely suitable for metal materials such as aluminum alloys, copper, stainless steel, and cast iron, as well as non-metallic materials like plastics and acrylics. Suitable for batch processing of medium-sized workpieces.

• 【Precise Standard Specifications】 It includes 5 pcs square nose end mills. Total length 2-1/2", Cutting Length 3/4", Cutting Diameter 1/4", Shank 1/4". It is compatible with most CNC milling machines and machining centers, offering strong adaptability.
• 【HRC 65 deg】 Ideal for cast iron (≤HB300), aluminum alloy (≤HB100), carbon steel (≤HRC35), alloy steel (≤HRC40), and other metals, Designed for large-size, relatively deep machining; relies on high rigidity but requires strict temperature control.
• 【Durable Coating】 The DLC coating enhances the milling cutter’s performance by increasing hardness and wear resistance, while also providing strong heat resistance to extend service life.
• 【Premium solid carbide 】 It is made of carefully selected tungsten steel, combining durability and sharpness in long-term and high-intensity processing tasks. While enhancing the wear resistance, the cutting accuracy has also been improved, with an error of only -0.02mm. This enables users to effortlessly achieve professional cutting quality.
• 【High-Efficiency Machining】 With a 4-flute spiral head structure, multiple flutes participate in cutting simultaneously, generating large and concentrated radial force. It can withstand high feed rates and cutting depths, quickly remove materials and improve production efficiency.