Cobalt-Containing Titanium Coated Spot Drill with Straight Shank

This spot drill is made from high speed steel containing cobalt and has a titanium plated surface treatment. It is designed for creating accurate starting points and centring holes in metal workpieces. The straight shank fits standard drill chucks and tool holders, while external cooling means coolant is applied from the outside during operation. Available sizes include 3, 4, 5, 6, 8, 10, 12, 16, 18 and 20, plus M3X90 through M20X90 options. The maximum depth of cut is 20 and the blade size is 20. This is a practical tool for metalworking tasks where a controlled start is needed before drilling or for chamfering.

Features and Construction

The spot drill combines a cobalt-containing high speed steel body with a titanium plated surface. Its straight shank and external cooling design make it suitable for common metalworking setups.

Material and Build

The drill is made from high speed steel containing cobalt, as stated in the source. This material is commonly used in cutting tools. The titanium plating is applied to the surface, which can help with wear resistance during repeated use. The straight shank provides a simple, cylindrical mounting interface. External cooling means the tool relies on coolant directed at the cutting zone from outside the tool, rather than through internal channels.

Size and Practical Fit

Available sizes are 3, 4, 5, 6, 8, 10, 12, 16, 18 and 20. The M3X90 to M20X90 options indicate a 90-degree point angle, which is a common geometry for spot drilling and chamfering. The maximum depth of cut is 20, and the blade size is 20. These dimensions help you match the tool to your specific hole-starting or chamfering requirement.

Uses and Placement

This spot drill is intended for metal drilling tasks where a precise start is useful. It can be used in workshop, maintenance, and home metalworking environments.

Event or Professional Use

In professional metalworking, a spot drill is often used to create a small indentation that guides a subsequent drill bit. The cobalt-containing high speed steel and titanium coating are suited to this role. The external cooling type means it works with setups where coolant is applied externally, such as many manual and CNC machines. The range of sizes from 3 to 20 and the M3X90 to M20X90 options allow you to choose a size for different hole diameters.

Everyday Home Use

For home workshops and DIY metal projects, this spot drill can help start holes more accurately in materials such as steel and aluminium. The straight shank fits common drill chucks. External cooling can be as simple as applying cutting fluid or oil to the work area. The smaller sizes, such as 3, 4, 5 and 6, are useful for precision work, while larger sizes like 10, 12, 16, 18 and 20 suit bigger tasks.

Benefits and Buying Value

The spot drill offers a combination of a cobalt-containing material, titanium plating, and a wide range of sizes. Its straight shank and external cooling make it compatible with many standard setups.

Reuse and Low Maintenance

With a titanium coating, the drill is designed to withstand repeated use. To help maintain it, keep it clean and store it in a dry place. Using external cooling as intended can help manage heat during cutting. No specific maintenance schedule is provided in the source, so basic care is advised.

Why Choose This Product

This spot drill provides a practical way to improve hole-starting accuracy in metal. The cobalt-containing high speed steel and titanium plating are stated features. The availability of sizes from 3 to 20 and M3X90 to M20X90 means you can select the right tool for the job. It is a straightforward option for metalworkers who need a reliable spot drill for centring and chamfering.