• A copper-colored step drill bit with a silver hex shank, featuring engraved size numbers 10, 8, and 6, isolated on a white background.
  • A size diagram labeled 'Detailed Dimensions' showing three copper-colored drill bit sizes with annotated measurements in inches and millimeters on a light gray background.
  • An infographic titled 'Design Features' showing a step drill bit with callout labels for 118° drill point, M35 cobalt high-speed steel, spiral flute, size markings on the body, and quick-change hex shank.
  • Comparison graphic for M35 Cobalt vs Titanium Coated drill bits, showing two cone-shaped drill bit illustrations at the top and a feature comparison table below with hardness, high temperature resistance, drilling stainless steel, drilling carbon steel, and wear resistance.
  • A set of copper-colored step drill bits with a silver hex shank, shown alongside text reading 'One Bit Does It All' and 'Multiple Drilling Sizes.' The main bit is illustrated on the left, with a row of progressively smaller drill bits on the right against a light gray background.
  • A copper-colored step drill bit with depth markings is shown drilling into a metal sheet with shavings, under a drill press. The right side includes a text panel reading 'Suitable for Harder Materials' with circular insets showing soft metals, wood, carbon steel, and stainless steel.
  • A drill bit set shown in a workshop scene with wood shavings, plus labeled categories below reading Power Drill, Cordless Drill, and Bench Drills, with photos of drill tools underneath.
1 7

Hardy Supply

M35 Cobalt HSS Step Drill Bit, 4–32mm, 5/9/15-Step, 1/4in Hex Shank

M35 Cobalt HSS Step Drill Bit, 4–32mm, 5/9/15-Step, 1/4in Hex Shank

NY-HGLX-SteppedPagodaDrill-4/12-ZG

$23.99 USD
$23.99 USD
Sale Sold out

Tax-FREE for all U.S. orders except New York.

NY Tax-Exempt organization? Contact us.

Size

About this item

  • M35 Cobalt HSS Construction: made from M35 cobalt high-speed steel for enhanced hardness, heat resistance, and extended cutting life. Designed for demanding drilling applications and repeated use
  • Multiple Step Options: available in 5-step, 9-step, and 15-step configurations for different hole-size ranges, helping reduce tool changes during drilling and hole expansion
  • Hex Shank Design: equipped with a standard 1/4in (6.35mm) hex shank for a secure fit in hand drills and drill presses. Helps improve stability and torque transfer during drilling operations
  • Multi-Material Drilling: suitable for stainless steel, iron plates, aluminum alloy, wood, and other common construction materials for DIY projects and professional applications
  • Size & Cutting Length Options: 5-step covers 4–12mm with a 1.69in (43mm) cutting section; 9-step covers 4–20mm with a 1.89in (48mm) cutting section; 15-step covers 4–32mm with a 3.03in (77mm) cutting section

Fast & Free US Shipping

Free standard shipping on eligible orders within the continental United States. Most in-stock items ship within 1–2 business days.

30-Day Hassle-Free Returns

Return eligible items within 30 days. See our Return Policy for complete details.

10-Day Price Protection

If the price of your purchased item drops on our website within 10 days, contact us and we'll refund the difference.

US-Based Customer Support

Questions before or after your purchase? Contact us at support@hardysupply.com. We typically respond within 1 business day.

Secure Checkout

Your personal and payment information is protected using industry-standard SSL encryption and trusted payment processors.

Quality You Can Trust

We carefully source products from trusted manufacturers to deliver dependable quality and performance.

View full details
A vertically oriented product information collage for a cobalt drill bit set. The image contains multiple panels showing the drill bit sizes and shapes, labeled 'Detailed Dimensions', 'M35 Cobalt Heavy-Duty Performance', 'Spiral Fluted Design', 'Controlled Drilling', 'Suitable for Harder Materials', and 'Compatible Tools'.