6-Piece Step Drill and Milling Drill Set with Carrying Case, HSS4241, 4-30mm Range
Professional-grade step drill set with three precision bits covering 4-30mm, plus twist drills. HSS4241 material, titanium-nitride coated, compact storage case.
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Step Drill and Milling Drill Set
Brief Overview
This 6-piece step drill and milling drill set delivers the precision hole-making capability your workshop needs for sheet metal, plastic, and composite work. The kit includes three step drills with overlapping size ranges and three twist drill bits, all housed in a durable blue plastic carrying case with molded foam protection. Each bit features a titanium-nitride gold coating and HSS4241 high-speed steel construction for extended tool life. Perfect for resellers looking to stock a compact, value-focused accessory that serves metalworking professionals who need reliable step drilling without committing to full workshop collections. Complement this set with a comprehensive twist drill kit for complete hole-preparation coverage, or consider the dedicated 4-30mm step drill for shops requiring bulk quantities of the most versatile size range.
Key Features
Three Step Drills with Graduated Sizes:
- 4-12mm (9 sizes)
- 4-20mm (9 sizes)
- 4-30mm (14 sizes)
Three Twist Drill Bits: 3mm, 6mm, 8mm for precision pilot and finishing holes
HSS4241 High-Speed Steel: Superior wear resistance and heat tolerance for sustained cutting performance
Titanium-Nitride Coating: Extended edge retention and reduced friction during drilling operations
Compact Blue Carrying Case: Molded foam insert organizes each bit, rubberized latches secure the hinged lid, integrated handle for tool-bag portability
Round Shank Design: Standard fit for most handheld and press-mounted chucks
Business Advantages for Resellers
- Tight Margin Protection: HSS4241 step drills command premium pricing due to material cost; titanium-nitride coating justifies resale markup
- Turnover Driver: Metalworking shops, HVAC technicians, and assembly operations replenish step drills regularly—establish your shop as a reliable source
- Bundled Value Proposition: Selling the complete 6-piece kit at a modest discount versus individual bits creates perceived savings and increases average order value
- Low Return Risk: Robust carrying case and protective foam insert arrive damage-free; professional presentation reduces warranty claims
- Cross-Sell Catalyst: Customers who buy this set will need additional twist drill assortments for non-conical work
Technical Specifications
| Feature | Specification |
|---|---|
| Material | HSS4241 High-Speed Steel |
| Coating | Titanium-Nitride (Gold Finish) |
| Step Drill 1 Range | 4–12mm (9 sizes) |
| Step Drill 2 Range | 4–20mm (9 sizes) |
| Step Drill 3 Range | 4–30mm (14 sizes) |
| Twist Drills | 3mm, 6mm, 8mm |
| Shank Type | Round |
| Total Pieces | 6 bits |
| Carrying Case | Blue plastic, molded foam insert, hinged lid, snap latches |
| Handle | Integrated side grip on case |
Why This Set Matters for Your Shop
Step drills eliminate the need for multiple bit changes when enlarging holes through thin materials. The three-drill approach in this set ensures you stock the most common diameter progressions—4-12mm for small electrical work, 4-20mm for general fabrication, and 4-30mm for sheet metal and large openings. The inclusion of matching twist drills allows operators to create pilot holes with precision before moving to step drilling, improving accuracy and reducing bit breakage.
HSS4241 is the professional standard for high-speed drilling; it outperforms cheaper steel alloys in heat dissipation and edge longevity. The titanium-nitride coating further extends tool life by 2–3× over bare steel, directly improving your customers' cost per hole.
Ready to stock this essential drilling accessory? Order in bulk and position your shop as the trusted source for precision metalworking tools.