This professional HSS drill bit set is engineered for workshops that demand dependable cutting performance across a broad range of metalworking tasks. Manufactured from premium M2 high speed steel, every bit in this kit delivers consistent hardness, excellent wear resistance and the durability required for daily production environments. The set covers multiple metric diameters from 1.0 mm to 13.0 mm, giving machinists, fabricators and maintenance teams a complete solution for drilling steel, iron, aluminum and other common workshop materials without the need to purchase separate individual bits.
Each drill in this set features a 135-degree split point geometry that reduces walking on contact, allowing the bit to bite into the workpiece immediately and produce accurate holes with less thrust pressure. The carefully ground cutting edges and polished flutes promote efficient chip evacuation, which keeps the cutting zone cool and extends the usable life of every bit. Whether you are working on repair jobs, prototype fabrication or series production, this multi-size HSS drill bit set is a practical and cost-effective addition to any professional tool inventory.
Key Features
- Complete Size Coverage: 25 popular metric diameters from 1.0 mm to 13.0 mm cover most workshop drilling requirements in a single organized kit.
- Premium M2 HSS Material: High speed steel with balanced toughness and hardness delivers long service life even under continuous metal drilling conditions.
- 135-Degree Split Point: Self-centering tip design prevents walking and eliminates the need for center punching on most flat metal surfaces.
- Efficient Chip Removal: Precision ground flutes channel chips away from the cutting edge, reducing heat buildup and preventing clogging in deeper holes.
- Durable Index Case: The sturdy plastic storage case keeps every bit organized, protects the cutting edges and makes size selection fast and convenient.
- Versatile Material Compatibility: Suitable for steel, cast iron, aluminum, copper, wood and plastic, making it a true all-rounder for general workshops.
Technical Specifications
| Parameter | Specification |
|---|
| Material | M2 High Speed Steel |
| Size Range | 1.0 - 13.0 mm (25 pieces) |
| Point Angle | 135° Split Point |
| Shank Type | Straight Round Shank |
| Hardness | HRC 63-65 |
| Surface Finish | Bright Finish |
| Suitable For | Steel, Iron, Aluminum, Wood, Plastic |
| Packaging | Plastic Index Case |
Applications
This professional HSS drill bit set is ideal for general metal fabrication, automotive repair, HVAC installation, electrical work and machine maintenance. The 1 mm to 13 mm diameter range covers pilot holes, clearance holes and tapping preparation sizes commonly needed in workshop operations. The 135-degree split point performs exceptionally well on curved or uneven surfaces where standard chisel-edge drills tend to wander, so operators can achieve accurate hole positions with less effort and fewer rejected workpieces.
Beyond metal, the set also drills cleanly through wood, plywood, particle board and most plastics, making it a flexible companion for carpenters, electricians and DIY enthusiasts. For production shops that process carbon steel, alloy steel or stainless steel sheets, this kit provides a dependable first-choice solution that balances cutting speed, hole quality and tool life.
Packaging & Quality Assurance
Each set is delivered in a durable plastic index case with clearly marked size positions, and the case is packed in a sturdy export carton to prevent damage during international shipping. Custom packaging options such as blister cards, metal cases or private-label branding are available for distributors and OEM customers. Every batch is inspected for dimensional accuracy, hardness consistency and cutting edge quality before shipment.
Our factory operates under an ISO 9001:2015 quality management system, and we offer a reliable after-sales service. For bulk quantities, we provide competitive factory pricing, flexible payment terms and on-time delivery. Please contact our sales team with your target quantity and packaging requirements, and we will prepare a tailored quotation for your market.
