1 9

Crosstar 21Pc Cobalt Stepped Point Drill Bit Set,1/16-1/2" TiAlN Coated

Crosstar 21Pc Cobalt Stepped Point Drill Bit Set,1/16-1/2" TiAlN Coated

$82.98 USD
$82.98 USD
Sale Sold out
Taxes included. Shipping calculated at checkout.

About this item

  • 【21-Piece M35 Cobalt Steel Drill Bit Set: Targeted for Hard Metals】Crafted from premium M35 cobalt steel with 5% cobalt core, this drill bit set is engineered to tackle tough metals ranging from 30–60 HRC hardness. It delivers superior drilling performance on stainless steel, high-temperature alloy steel, and bearing steel, outperforming ordinary high-speed steel bits on hard materials.
  • 【135° Step Drill Head: 50% Faster, No Pre-Drilling Needed】Boasting a 135° split-point step design, this drill bit enables instant, accurate starting—even on curved surfaces. The stepped structure delivers rounder, smoother holes and allows easy hole enlargement on existing openings. The tri-flat shank locks securely in chucks for stable, wobble-free drilling.
  • 【Exclusive TiAlN Nano Coating】Unlike the mainstream oxide, blued, or yellow-baked coatings on the market, our drill bits feature an exclusive high-performance TiAlN nano coating. Boasting 1400°F heat resistance and 6x enhanced durability, this unique coating solution outshines competitors and delivers unmatched drilling performance for tough tasks.
  • 【Superior Shockproof Case】Our premium shockproof case is attractive, shatter-resistant and effectively solves the common issues of flimsy plastic boxes that break easily and iron boxes that tend to rust; each drill body is marked with laser-etched size labels for quick access, and the 21-piece set comes with practical popular sizes for secure storage and hassle-free use.
  • 【Usage Tips + Guarantee】 Apply steady vertical pressure during operation (do not twist the drill bit) and match the rotational speed to the bit size for optimal performance: 1/16–9/64 inch bits recommended at 1260rpm; 5/32–1/4 inch bits at 740rpm; 5/16–1/2 inch bits at 290rpm. if any quality issues arise during use, please contact us promptly—we will make every effort to resolve the problem and ensure your satisfactory shopping experience.

Low stock: 10 left

View full details

Reviews

  • ⭐⭐⭐⭐⭐

    Michael Turner — Columbus, Ohio

    MROVanta made it easier to find several maintenance supplies in one place. The product information helped me compare the available options, and everything I ordered was useful for routine work around our facility.

  • ⭐⭐⭐⭐⭐

    Rachel Morgan — Phoenix, Arizona

    I was looking for practical supplies for our workshop and found the selection easy to browse. The categories were well organized, and I could quickly locate tools, fasteners, and other items needed for regular maintenance.

  • ⭐⭐⭐⭐⭐

    David Collins — Charlotte, North Carolina

    The products I selected were suitable for the maintenance tasks we had planned. I appreciated being able to review the specifications before ordering, especially when comparing sizes and compatibility for different applications.

  • ⭐⭐⭐⭐⭐

    Amanda Brooks — Denver, Colorado

    I ordered a mix of facility and equipment supplies for our work area. The shopping process was straightforward, and the selection covered several everyday maintenance needs without requiring visits to multiple stores.

New Arrivals

View all

Featured Collections

1 4

FAQ

How can I confirm that a product is suitable for my application?


Review the product description, dimensions, materials, ratings, connection types, and compatibility information before ordering. Industrial requirements vary, so consult the equipment manufacturer or a qualified professional if you are uncertain.

Do you provide installation or technical advice?


We can help clarify information shown on a product page, but we do not provide engineering, installation, or workplace-safety advice. Products should be selected, installed, and operated by appropriately qualified personnel where required.

Can I change or cancel my order after placing it?


Contact us as soon as possible at ruleindgalein@gmail.com. We will try to accommodate your request, but changes or cancellations cannot be guaranteed once an order has entered processing or shipment.

When will my order be shipped?


Processing and delivery estimates may vary depending on the product, destination, inventory availability, and carrier. Please review the shipping information provided at checkout and our Shipping & Delivery Policy for additional details.

How can I track my order?


When tracking becomes available, it will be sent to the email address used for your order. Tracking activity may take some time to appear after the carrier receives the shipment.

Why did my order arrive in more than one package?


Items from the same order may be fulfilled or shipped separately. As a result, packages can arrive at different times and may have separate tracking numbers. You will not be charged additional shipping solely because an order is divided into multiple shipments.

What should I do if an item arrives damaged, defective, or incorrect?


Contact us promptly at ruleindgalein@gmail.com with your order number, a description of the issue, and clear photographs of the item, packaging, shipping label, and any visible damage. Keep all packaging until we provide further instructions.

Can I return an item if it is not suitable?


Eligible items may be returned in accordance with our Return & Refund Policy. Return conditions, exclusions, time limits, and any applicable costs depend on the item and circumstances. Please contact us before sending anything back.

Do you offer bulk quantities or business purchasing?


Availability of larger quantities varies by product. Email us with the product link, desired quantity, required specifications, and delivery location, and we will let you know whether suitable options are available.

How can I contact MROVanta?


Email us at ruleindgalein@gmail.com or call +1 (936) 260-5549. Include your order number when contacting us about an existing purchase so we can assist you more efficiently.

Blog posts

View all
  • How to Stop Rust on Exposed Metal Pipes in Humid Industrial Facilities

    How to Stop Rust on Exposed Metal Pipes in Humi...

    Preventing pipe corrosion in humid industrial facilities requires more than removing visible rust. Learn practical MRO strategies for moisture control, surface preparation, protective coatings, pipe supports, and ongoing inspections.

    How to Stop Rust on Exposed Metal Pipes in Humi...

    Preventing pipe corrosion in humid industrial facilities requires more than removing visible rust. Learn practical MRO strategies for moisture control, surface preparation, protective coatings, pipe supports, and ongoing inspections.

  • Rust Prevention on Exposed Metal Pipes: 5 MRO Myths That Cause Costly Facility Damage

    Rust Prevention on Exposed Metal Pipes: 5 MRO M...

    Prevent rust on exposed metal pipes with practical MRO corrosion-control strategies. Learn how humidity, surface preparation, protective coatings, inspection routines, and environmental conditions affect industrial pipe maintenance.

    Rust Prevention on Exposed Metal Pipes: 5 MRO M...

    Prevent rust on exposed metal pipes with practical MRO corrosion-control strategies. Learn how humidity, surface preparation, protective coatings, inspection routines, and environmental conditions affect industrial pipe maintenance.

  • How to Stop Rust Before It Starts: A Practical Guide to Protecting Exposed Metal Pipes in Humid Facilities

    How to Stop Rust Before It Starts: A Practical ...

    Learn how to prevent rust on exposed metal pipes in humid industrial facilities. Discover practical corrosion-control methods, surface preparation techniques, coating considerations, and preventive maintenance practices.

    How to Stop Rust Before It Starts: A Practical ...

    Learn how to prevent rust on exposed metal pipes in humid industrial facilities. Discover practical corrosion-control methods, surface preparation techniques, coating considerations, and preventive maintenance practices.

1 3
View all