M35 Cobalt Step Drill Bit – Hardened Pagoda Hole Cutter

Take your drilling game to the next level with the M35 Cobalt Step Drill Bit — a hardened, precision-engineered step drill designed to cut clean, accurate holes through stainless steel, sheet metal, aluminum, plastic, and more. Whether you're a seasoned tradesperson or a dedicated DIY enthusiast, this pagoda-style step drill delivers professional results every time.

Why Choose the M35 Cobalt Step Drill Bit?

• M35 High-Speed Cobalt Steel Construction: The cobalt alloy composition provides superior hardness and heat resistance, keeping the cutting edge sharp even under demanding conditions.
• Pagoda Step Design: The multi-step pagoda profile lets you drill a range of hole sizes with a single bit — no need to swap bits mid-project. Each step is precision-ground for a clean, burr-free finish.
• Hardened & Durable: Specially hardened for long-lasting performance across repeated use on tough materials including stainless steel, mild steel, copper, and plastics.
• Compact & Versatile: Measuring just 7.7 cm (3.03 in), this bit is easy to handle and fits standard drill chucks for quick setup.
• Easy-Clean Stainless Steel Finish: Resists corrosion and wipe-cleans easily, so your bit stays ready session after session.
• Great Value: A practical upgrade for your toolbox — or a thoughtful gift for the builder, maker, or hobbyist in your life.

Product Specifications

• Material: M35 Cobalt High-Speed Steel
• Style: Pagoda Step Drill (multi-step hole opener)
• Length: 7.7 cm / 3.03 in
• Color: Brown (cobalt finish)
• Compatible Materials: Stainless steel, sheet metal, aluminum, copper, plastic

Ideal Applications

This step drill bit is perfect for electrical work, HVAC installations, automotive projects, metal fabrication, and general workshop use. The stepped design eliminates the need for multiple drill bits, saving you time and keeping your toolbox organized.

For more guidance on safe tool use and workshop best practices, visit the OSHA Tools & Equipment Safety Resource.

Frequently Asked Questions

Q: What materials can the M35 Cobalt Step Drill Bit cut through?

A: The M35 Cobalt Step Drill Bit is designed to cut through a wide range of materials including stainless steel, mild steel, sheet metal, aluminum, copper, and hard plastics. The cobalt alloy construction gives it the hardness and heat tolerance needed for tough materials that standard HSS bits struggle with.

Q: What sizes of holes can I drill with this step drill bit?

A: This pagoda-style step drill bit features multiple graduated steps, allowing you to drill a range of hole diameters with a single bit. The stepped design means you simply drill to the step that matches your desired hole size — no need to change bits. The bit measures 7.7 cm (3.03 in) in total length.

Q: Is this step drill bit compatible with standard drill chucks?

A: Yes. The M35 Cobalt Step Drill Bit is designed with a standard shank that fits most corded and cordless drill chucks, making it easy to integrate into your existing setup without any adapters.

Q: How do I maintain and care for this cobalt step drill bit?

A: After each use, wipe the bit clean with a dry cloth to remove metal shavings and debris. Store it in a dry location to prevent moisture exposure. The cobalt steel construction offers good corrosion resistance, but periodic light oiling of the cutting edges will help maintain sharpness and extend the bit's working life.