Drill bit set YATO YT-41604 — 19-piece twist drill bits for cast iron, non-ferrous metal, plastic, stainless steel

YATO YT-41604 is a 19-piece set of twist drill bits intended for drilling in cast iron, non-ferrous metals, plastics and stainless steel. The set covers a range of common diameters used for through-holes, pilot holes and general repair or maintenance tasks in workshops, fabrication shops and on-site jobs. Each bit is ground for efficient chip evacuation and stable penetration across a variety of materials, making the kit a practical choice for everyday drilling needs.

Advantages

The set provides a broad selection of sizes to reduce the need for frequent tool changes and to cover typical metalworking and plastic-drilling applications. Bits are manufactured with geometry suited to cutting harder materials like stainless steel while remaining useful on softer metals and plastics. The kit's organized packaging keeps bits accessible and protected, helping to maintain cutting edges and ensuring consistent performance over time.

Suitable for

• Drilling through cast iron components
• Creating holes in non‑ferrous metals such as aluminium and brass
• Plastic fabrication and repair tasks
• Pilot holes and preparatory drilling for fastening
• Workshop maintenance and on‑site repair work

Key specifications

• Set contents: 19 twist drill bits in a progressive range of diameters suitable for common metal and plastic work
• Applicable materials: cast iron, non‑ferrous metals, plastics, stainless steel
• Shank type: straight shank compatible with standard chucks
• Drill point geometry: ground for general-purpose metal and plastic cutting with enhanced chip evacuation
• Packaging: organized case for storage and transport

How to use

Select the appropriate drill bit diameter for the required hole and secure it in a compatible drill chuck. When drilling metals or stainless steel, use proper clamping for the workpiece and operate the drill at suitable speed for the material; lower speeds are recommended for harder metals. Apply steady pressure without forcing the bit, and use cutting fluid or coolant when working with metals to extend bit life and improve hole quality. For plastics, use reduced speed and minimal pressure to avoid melting or cracking. After use, clean chips from the flutes and return bits to the case to protect cutting edges.

Usage recommendations

For best results and extended tool life, match drill speed and feed to the material, use cutting fluid on metal jobs, and ensure the workpiece is securely clamped. Replace worn bits to maintain hole accuracy and reduce the risk of breakage.