Drill Bit Set DeWalt DT70802-QZ — 10-piece HSS drill bit set

DeWalt DT70802-QZ — 10-piece HSS drill bit set is designed for precise drilling in metal and other materials compatible with high-speed steel bits. The set contains ten commonly used drill diameters, delivered in a compact organizer for convenient storage and quick selection. HSS construction provides a balance of hardness and toughness for routine workshop, maintenance and professional applications.

Advantages

The HSS composition ensures good heat resistance and sustained cutting performance at higher speeds compared with standard carbon bits. Uniform ground flutes and a sharp point geometry allow accurate centring and consistent chip evacuation, reducing the risk of overheating and bit wander. The set covers a range of sizes for flexible use and comes in an organized case that protects the bits and simplifies transport and storage.

Suitable for

• Drilling mild and medium steels
• Maintenance and repair work in workshops and facilities
• General metal fabrication and assembly tasks
• Drilling into non-ferrous metals and some plastics

Key specifications

• Material: High-speed steel (HSS)
• Set size: 10 pieces covering multiple common diameters
• Point geometry: Split/standard ground for improved centring and reduced walking
• Finish: Uncoated or standard HSS finish suitable for general-purpose use
• Packaging: Compact organizer case for storage and transport

How to use

Select the drill bit size appropriate for the hole diameter required and secure it in a compatible chuck. Mark the drilling position and, when drilling metal, start with a low speed and light pressure to establish the pilot hole, then increase speed as appropriate. Use cutting fluid or coolant for tougher alloys or prolonged drilling to reduce heat and extend bit life. Maintain steady feed pressure and clear chips periodically to avoid clogging of the flutes.

Usage recommendations

Use these HSS drill bits for standard drilling tasks in metals and compatible materials; for stainless steel or high-alloy steels, consider step-drilling, reduced speeds and appropriate lubricants. Store bits in the supplied case to prevent damage and inspect edges before use; replace worn bits to maintain drilling quality and safety.