About this item

Product Description Upgrade your drilling toolkit with these 4mm HSS twist drill bits, engineered for high hardness, long-lasting durability, and smooth drilling performance. Designed for versatile use on wood, aluminum, plastic, and other soft materials, these extra-long 200mm drill bits help improve reach and efficiency for deeper drilling tasks. The deep helix flute design supports fast chip removal, while the straight shank and double-groove clamping structure provide stable handling and easier operation. Key Features HSS Material: Made of high-speed steel for dependable hardness, wear resistance, and durability. Wide Application: Suitable for drilling wood, aluminum, plastic, and other soft materials in everyday workshop and DIY use. Efficient Drilling: Deep helix flutes help remove material quickly for smoother, faster drilling. Easy Operation: Double-groove clamping design supports secure fitting and more effortless use. Extra-Long Reach: 200mm length and 4mm size make it practical for extended-depth drilling tasks. Stable Shank Design: Straight shank structure offers comfortable handling and reliable drilling control. Specifications Product Type: Twist Drill Bit Material: HSS High-Speed Steel Bit Diameter: 4mm Length: 200mm Shank Type: Straight Shank Package Includes: 2 × 4mm Twist Drill Bits Usage Ideal for DIY projects, home improvement, workshop tasks, and light industrial applications, these long HSS drill bits are well-suited for users who need reliable performance when drilling soft metals, plastics, and wood with improved depth access.