High Speed Steel NC Spotting Drill Bit YG-1 3/4″ Diameter 120° Shank

Description

Product Overview

The YG-1 High Speed Steel NC Spotting Drill Bit is a premium cutting tool designed for industrial and scientific applications where precision and durability are paramount. Constructed from a high speed steel alloy infused with 8% cobalt, the bit offers exceptional hardness and resistance to wear, ensuring a long service life even under demanding machining conditions. Its 120° point angle provides a sharp, clean entry that minimizes material deformation, while the 3/4″ diameter allows for larger centering and chamfering operations in a single pass. The straight shank design ensures stable, vibration‑free rotation on both NC and CNC machines, and the slow spiral geometry reduces chip buildup, delivering smoother cuts and lower heat generation. With a total length of 5‑5/32″ and a compact package size of 8.7 x 1.42 x 0.94 inches, this drill bit fits easily into standard tool holders and storage solutions.

Usage

This spotting drill is ideal for precision centering tasks on CNC milling machines, CNC lathes, and manual drill presses used in metalworking, aerospace, automotive, and tooling industries. The bit excels when creating pilot holes for larger drills, enabling accurate alignment for subsequent machining operations such as drilling, tapping, or reaming. Its robust construction makes it suitable for drilling hardened steels, stainless steels, and other tough alloys where conventional carbon steel bits would quickly dull. The 120° point angle also facilitates chamfering of hole edges, reducing the need for separate chamfer tools and streamlining workflow. Whether you are producing prototype components, performing high‑volume production runs, or conducting maintenance repairs, the YG-1 spotting drill delivers consistent results and helps maintain tight tolerances.

Why Choose Us

Choosing the YG-1 spotting drill means selecting a tool backed by rigorous quality control and a reputation for reliability. Each bit undergoes a multi‑stage heat‑treatment process that optimizes hardness while preserving toughness, ensuring the cutting edge remains sharp even after extended use. The inclusion of cobalt enhances the steel’s ability to retain its hardness at elevated temperatures, reducing the risk of thermal softening during high‑speed operations. Our manufacturing facilities adhere to ISO‑9001 standards, and every batch is inspected for dimensional accuracy, surface finish, and material composition. In addition, YG‑1 provides responsive technical support and a straightforward warranty policy, giving you confidence that any issues will be addressed promptly. By investing in this drill bit, you benefit from reduced downtime, lower replacement costs, and superior machining performance.

Key Features

• High speed steel with 8% cobalt delivers superior hardness and heat resistance for long tool life.
• 120° point angle creates clean entry and reduces material deformation, improving hole accuracy.
• 3/4″ diameter enables simultaneous centering and chamfering, streamlining machining processes.
• Straight shank and slow spiral design minimize vibration and chip buildup for smoother operation.
• Dedicated customer support and warranty ensure reliable after‑sales service and peace of mind.

FAQ

What materials can this drill bit handle?

The bit is engineered for hardened steels, stainless steels, and other tough alloys, thanks to its high speed steel and cobalt composition.

Is the 120° point angle suitable for all hole sizes?

The 120° angle is optimal for creating pilot holes and chamfering edges in medium to large diameters; for very small holes, a sharper angle may be preferred.

Can I use this bit on both NC and CNC machines?

Yes, the straight shank and balanced design make it compatible with both NC and CNC equipment, providing stable performance across platforms.

How do I maintain the drill bit for maximum lifespan?

Regularly clean the flutes after each use, store the bit in a dry environment, and avoid excessive feed rates that could overload the cutting edge.

What warranty does YG‑1 offer for this product?

YG‑1 provides a one‑year limited warranty covering manufacturing defects, along with access to technical support for any usage questions.