Bosch CO2148 21/64 in. x 4-5/8 in. Cobalt Drill Bit

Description

Product Overview

The Bosch CO2148 cobalt drill bit is engineered for professional and serious DIY users who demand precision, durability, and performance in challenging drilling tasks. Measuring 21/64 inch in diameter and 4-5/8 inches in length, this long‑length bit provides a full‑shank, jobber‑style design that fits securely into standard power drill chucks. The bit is constructed from high‑grade cobalt alloy, a material known for its superior hardness, heat resistance, and wear resistance. Its surface‑hardened tip is specially treated to penetrate tough, abrasive materials with minimal wear, while the rigid thick web adds stability and reduces wobble during high‑torque operations. The bit is rated to endure temperatures up to 1,100 °F, making it suitable for high‑temperature applications such as drilling in hot metalworking environments or when using high‑speed cutting fluids.

Usage

This drill bit excels in a wide range of applications. It is ideal for drilling into light‑gauge metals such as aluminum and alloy steel, as well as tougher materials like high‑carbon steel, cast iron, stainless steel, and even titanium. The bit’s high‑temperature tolerance allows it to maintain cutting efficiency when drilling in heated workpieces or when using lubricants that raise the operating temperature. Whether you are assembling automotive components, fabricating machinery parts, or performing maintenance on industrial equipment, the CO2148 delivers consistent performance. Its long shank provides extra reach for deep holes, and the full‑shank design ensures a secure grip in the drill, reducing the risk of slippage during demanding tasks. The bit is also compatible with standard magnetic drill presses and handheld power drills, giving you flexibility across job sites.

Why Choose Us

Choosing the Bosch CO2148 means selecting a product backed by Bosch’s decades‑long reputation for engineering excellence. Each bit undergoes rigorous quality control testing to verify dimensional accuracy, hardness, and heat resistance. The cobalt alloy composition provides a longer service life compared to standard steel bits, reducing the need for frequent replacements and lowering overall tool costs. Bosch’s surface‑hardening process creates a tip that resists wear and maintains sharpness, ensuring clean, burr‑free holes. Additionally, the bit’s design incorporates a rigid thick web that minimizes vibration, improving user comfort and precision. Bosch also offers comprehensive customer support, including technical assistance, warranty coverage, and access to a network of authorized service centers, giving you confidence in your purchase.

Key Features

• High‑temperature resistance up to 1,100 °F for demanding drilling environments
• Rigid thick web design delivers stability and reduces wobble during high‑torque use
• Surface‑hardened tip penetrates tough metals quickly while maintaining sharpness
• Long‑length, full‑shank jobber style fits most power drills and magnetic drill presses
• Backed by Bosch’s warranty and dedicated after‑sales support for peace of mind

FAQ

What materials can the CO2148 drill bit handle?

The bit is designed for light‑gauge metal, high‑carbon steel, aluminum, cast iron, stainless steel, and titanium, making it versatile for many metalworking tasks.

Can this bit be used in high‑speed drilling applications?

Yes. Its cobalt alloy construction and surface‑hardened tip allow it to operate at high speeds while resisting heat buildup and wear.

Is the bit compatible with standard cordless drills?

Absolutely. The full‑shank, jobber‑length design fits standard 1/4‑inch chucks found on most cordless and corded drills.

How does the rigid thick web improve drilling performance?

The thick web adds structural rigidity, reducing flex and vibration. This results in smoother drilling, better hole accuracy, and less user fatigue.

What warranty does Bosch provide for this drill bit?

Bosch offers a limited warranty that covers manufacturing defects and ensures the bit meets its performance specifications, backed by their global customer service network.