Drill Bit Size — Cutting edge diameter: 30mm; shank diameter: 1/2″; cutting edge length: 75.5mm / 2.97″; overall length: 150mm / 5.91″, Included: 1 Piece x Drill Bit
PRACTICAL PERFORMANCE — The twist drill offers excellent toughness, combining a Nitriding Black and a 118 Angle design. It has significant advantages in processing performance and cost-effectiveness, achieving superior processing at low cost and striking a perfect balance between cost and quality.
Wide Applications — For acrylic, plastic, wood, soft metals (Cu, Al alloys), carbon steel, cast iron & thin stainless steel, suitable for vehicle maintenance like sheet metal, bolt holes, brackets, wire harness mounts. (not to be used on hardened steels, high-alloy steels, thick stainless steel, or other ultra-hard materials.)
4341 High-Speed Steel (HSS) — Offers high hardness, excellent wear resistance, and good toughness. It is a versatile drill bit suitable for machining medium- to low-hardness materials.
Useful Tips — Ensure the drill bit is perpendicular to the workpiece surfacetilting can cause breakage or hole deviation. For beginners: Always verify proper speed and feed rates before formal workpiece machining. For larger holes, a small guide hole should be drilled first to ensure precision.