Sinyeenglon hex shank cobalt drill bits close-up for metal drilling.
Sinyeenglon drill bits with index holder for organized storage.
Sinyeenglon cobalt drill bits in stainless steel drilling demonstration.
Sinyeenglon M35 cobalt coating provides heat resistance during cutting.
Sinyeenglon 1/4 in bit in action on metal.
Sinyeenglon size range 1/16 to 1/4 inch for versatility.
Sinyeenglon hex shank design improves torque and steadiness.
Sinyeenglon metal drilling set offers long life.
Sinyeenglon impact driver ready bits enable tough material work.

Sinyeenglon

Sinyeenglon Hex Shank Cobalt Drill Bit Set – 13Pcs 1/16–1/4 in M35 HSS for Metal & Hardened Steel, Impact Driver

High-performance tools and home improvement made for confident daily results

$29.02

3 shoppers currently have this item in cart.

Low stock: only 5 left in inventory. Add to cart before it's gone.

Shop Pay installment options may appear at checkout where eligible.

Free shipping Secure checkout 100% refund eligible
Bundle & save Buy 2 and save checkout time

Premium tools and home improvement quality selected for United States (USA) customers.

Routine pack Build your routine pack (3)

Fast dispatch with always-free shipping and secure checkout on every order.

Free shipping

i

Free shipping on every order. Fast dispatch, tracked delivery, and secure checkout included.

Easy returns

i

Simple return flow and responsive support for eligible items.

Peak-demand shipping delays

i

During high demand, deliveries may experience short carrier delays. Tracking updates remain active for every order.

24/7 customer support

Questions before checkout? Our team is available and ready to help.

Return & RefundEasy returns and policy details Shipping PolicyDelivery process and tracking info
Share

Why customers choose TaskHolt Tools

Overview

Introducing the Sinyeenglon Hex Shank Cobalt Drill Bit Set, crafted to power through metal and hardened steel with consistency. The kit blends high-performance M35 cobalt edges with a solid 1/4 hex shank, designed to stay aligned and true as you work through challenging materials. These bits are engineered to handle heat and wear, delivering dependable results over time without sacrificing control or accuracy.

Why choose cobalt M35 for metal drilling

  • Hardness and heat resistance: cobalt M35 edge retention helps maintain sharpness under high heat, enabling faster cutting and cleaner holes.
  • Durable hex shank and solid bonding: the 1/4 hex shank minimizes bit slip and keeps the bit securely seated for consistent performance.
  • Improved torque and concentricity: the shank design reduces radial runout, supporting more accurate hole placement.
  • Versatile for hard metals: designed to drill stainless steel, cast iron, and zinc alloys, expanding beyond soft materials like wood or plastic.
  • Longer life and cost efficiency: multiple advantages work together to extend bit life, potentially reducing early replacements and downtime.

Kit contents and size range

  • 13 pieces spanning sizes from 1/16 to 1/4 inch: 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 11/64, 3/16, 13/64, 7/32, 15/64, 1/4 in.
  • Index holder included for quick size selection and organized storage, keeping your workspace tidy and efficient.

Real-world uses

Ideal for DIY metalworking, automotive tweaks, and home maintenance where stainless steel or other hard metals appear. The set works well with impact drivers, thanks to the secure hex shank and reliable seating that helps you maintain control through tough drilling tasks.

Care and compatibility

To maximize life, pair your drilling with appropriate pilot holes and avoid overheating. The 1/4 hex shank is compatible with most impact drivers and hex-compatible drills, making the set a versatile addition to your toolbox.

FAQ

Q: What makes the Sinyeenglon cobalt drill bit set suitable for metal work?

A: Powered by M35 cobalt, these bits withstand heat and preserve a sharp edge for metal and hardened steel drilling.

Q: Are the bits compatible with impact drivers and how is organization ensured?

A: Yes, the solid 1/4 hex shank fits impact drivers; an index holder keeps sizes organized for quick selection.

You may also like