Stepped Drill Bit Set, 5.5mm/7mm, TiN-Coated High-Speed Steel

Brief Overview

This stepped drill bit set delivers precision hole-making capability across two common industrial diameters in a single tool. The dual-diameter design—5.5mm and 7mm—eliminates the need to switch bits for sequential drilling operations, reducing setup time and improving accuracy on production runs. The gold-colored TiN (titanium nitride) coating reduces heat generation and extends tool life compared to uncoated steel, making these bits a cost-effective choice for high-volume shops. Pair this with precision stud repair kits to offer customers complete assembly solutions.

Key Features

• Stepped dual-diameter design: 5.5mm and 7mm in one bit—ideal for counterbore or sequential hole operations
• TiN-coated cutting edges: Gold coating reduces friction, heat buildup, and extends cutting life
• Conventional twist-drill geometry: Double-lip cutting edges with optimized chisel geometry for clean, precise hole entry
• High-speed steel construction: Durable substrate handles ferrous metals, aluminum, and composite materials
• Standard cylindrical shank: Compatible with universal drill chucks and quick-change systems

Why Resellers Profit from This Product

• Volume efficiency: Two diameters in one tool reduces inventory complexity and shipping weight per unit sold
• Repeat business: Consumable tool category with predictable replacement demand—customers return for refills
• Workshop standard: Stepped drills are essential for maintenance, repair, and light manufacturing—broad appeal across sectors
• Competitive pricing: Efficient manufacturing allows attractive distributor margins without sacrificing quality

Technical Specifications

Specification	Value
Primary Diameter	5.5 mm
Secondary Diameter	7 mm
Coating Material	TiN (Titanium Nitride)
Base Material	High-Speed Steel (HSS)
Shank Type	Cylindrical (Standard)
Cutting Geometry	Double-lip twist drill with chisel edge
Flute Design	Helical twist (2 flutes)
Application	Metal, aluminum, composites

Close the Sale

Stock this stepped drill bit set as a high-turnover consumable. The combination of precision geometry, extended tool life via TiN coating, and dual-diameter efficiency makes it an easy recommendation to customers who drill regularly. Include in kits or cross-sell with stud repair solutions to maximize transaction value and customer satisfaction.