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- ATOPLEE 1pc Cobalt Step Drill Bit,M35 5% HSS ...
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Item #:
187705149
ATOPLEE 1pc Cobalt Step Drill Bit,M35 5% HSS Co,Spiral Flutes and 14 Inch Hex Shank,Unibit Step Bit for Hole Drilling in Metal, Copper, Aluminum,
Item #:
187705149
TMT 64
Price Details
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Imported from USA store
Order now and get it around Monday, August 03
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The best choice for processing stainless steel, with a unique step structure and high-quality HSS-Co material for optimal performance.
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Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
Versatile Materials
Designed for drilling in metal, copper, aluminum, wood, and plastic, this drill bit offers exceptional versatility for various projects, making it a must-have for professionals and DIY enthusiasts alike.
Efficient Step Design
With nine steps ranging from 4-12mm, this step drill bit facilitates precise hole drilling at varying diameters, resulting in faster work and reduced hassle compared to traditional drill bits.
Durable Construction
Made from M35 HSS Co with 5% cobalt, this drill bit boasts enhanced durability and heat resistance, ensuring long-lasting performance and reliability even in demanding drilling tasks.
Product Details
| Cutting Diameter | 12 Millimeters |
| Minimum Bore Diameter | 0.35 Inches (0.9 cm) |
| Material Type | HSS Cobalt |
| Shank Type | Hex |
| Surface Recommendation | Metal |
| Tool Flute Type | Spiral |
| Number of Flutes | 2 |
| Brand Name | ATOPLEE |
| Model | 4-12mm |
| UPC | 601308124612 |
| Manufacturer | Atoplee |
| Item Weight | 1.28 ounces (36.29 grams) |
| Unit Count | 1 Count |
| Material | HSS Cobalt |
| Brand | ATOPLEE |
Who Should Buy?
-
DIY Enthusiasts
Perfect for hobbyists who need a versatile tool for various home projects involving different materials.
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Metal Workers
Ideal for professionals requiring precision and efficiency when drilling through metals and other tough materials.
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Woodworkers
Useful for woodworkers looking for a step drill bit to create clean holes in wood without splitting.
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Casual Users
Not suitable for those who infrequently drill, as the investment may outweigh their needs.
Product Description
ATOPLEE 1pc Cobalt Step Drill Bit,M35 5% HSS Co,Spiral Flutes and 14 Inch Hex Shank,Unibit Step Bit for Hole Drilling in Metal, Copper, Aluminum, Wood, Plastic,9 Steps,4-12mm
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Customer Questions & Answers
-
Question:
What materials can this step drill be used on?
Answer: It is suitable for stainless steel, carbon steel, aluminum plates, iron plates, and other harder workpieces. -
Question:
What is the recommended drilling speed?
Answer: The recommended drilling speed is between 250-400 RPM for optimal performance. -
Question:
Can this drill bit be used with any drill?
Answer: Yes, it can be installed on both pistol drills and bench drills.
ATOPLEE Step Drill Bits Editorial Review
The ATOPLEE 1pc Cobalt Step Drill Bit is garnering varied feedback from users who employ this tool for drilling applications in various metals, including mild steel, stainless steel, and aluminum. Many customers laud the bit for its performance, particularly highlighting its efficiency in creating holes in thin materials and dealing with tougher substances like 304 stainless steel. Users appreciate the cobalt Construction, which promises a longer cutting life compared to conventional high-speed steel (HSS) bits, especially for repeated use in steel drilling. One user reported drilling approximately 50 holes without any noticeable degradation in cutting ability, indicating robust durability in specific applications. The shorter length of the bit is also a plus for those working in tight spaces, allowing for greater maneuverability. Additionally, users have noted that metric stepped bits are often difficult to find, making this option particularly valuable for certain repairs and modifications. However, the product does have its downsides. Feedback includes instances of dulling after minimal use and breakage after the first use, suggesting some inConsistencies in quality control. While many users find the bit reliable, some express disappointment when it fails to meet their expectations, particularly when dealing with mild steel. In summary, the ATOPLEE Cobalt Step Drill Bit delivers good performance for those who utilize its capabilities effectively, although potential buyers should remain cautious of reported durability issues. **
Customer Reviews & Ratings
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Pros
- Efficiently drills various metals, including mild and stainless steel.
- Cobalt Construction provides longer cutting life compared to HSS bits.
- Shorter length is advantageous for tight spaces.
- Good for enlarging holes quickly without precision reaming.
Cons
- Reports of dulling after minimal use.
Platform Trust & Buyer Confidence
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Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
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Chitra
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“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
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kund
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“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
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Onesi
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“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
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“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
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TMT 64
Order now and get it around Monday, August 03
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Features & Benefits
- Made from high-quality HSS-Co material for durability.
- Unique step structure allows for various hole sizes without the need for a center punch.
- High hardness and wear resistance ensure longevity.
- Effective for stainless steel and other hard materials.
- Compatible with pistol and bench drills for versatile use.
- Includes multiple functions like burr removal and chamfering.
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