2 Spiral Flutes Tin Coating 3 PC Step Drill Set for 4-12mm 4-20mm 4-32mm

2 Spiral Flutes Tin Coating 3 PC Step Drill Set for 4-12mm 4-20mm 4-32mm. 3-PC Step Drill Set: Includes 3 sizes (4-12mm, 4-20mm, 4-32mm) for versatile drilling needs. High Speed Steel Material: Constructed from durable High Speed Steel for long-lasting performance. Spiral Flute Design: Features 2 spiral flutes for efficient chip removal and smooth drilling. Bright Finished Surface: Tin coating provides a bright finished surface for enhanced durability. Over 1 Year Warranty: Product warranty lasts more than 1 year for peace of mind. Strict Quality Inspection: Rigorous quality checks performed before shipment to ensure reliability. Professional Technical Support: Dedicated technical team available for development and quality assurance. Flexible Customization: Offers flexible customization options to meet specific client requirements.