Cobalt-Containing High Speed Steel Spot Drill with Titanium Coating, Straight Shank, External Cooling, Sizes 3-20mm, M3-M20X90 Options, 20mm Max Depth, Metal Drilling and Pilot Hole Tool
Cobalt HSS Spot Drill with Titanium Coating 3-20mm

This cobalt-containing high speed steel spot drill is titanium plated and designed for accurate pilot holes and chamfering in metalworking. It features a straight shank for standard drill chucks and uses external cooling. Available in sizes 3, 4, 5, 6, 8, 10, 12, 16, 18 and 20mm, with colour options from M3X90 to M20X90. The maximum depth of cut is 20mm, and the blade size is 20mm. Each order includes one spot drill. The combination of cobalt high speed steel and titanium plating supports use in routine drilling tasks where a precise starting point is needed.
Features and Construction

The spot drill is built from cobalt high speed steel with a titanium plated surface. Its straight shank and external cooling type are standard for many workshop setups. The available sizes cover a broad range from 3mm to 20mm, and the M3X90 to M20X90 options provide different length choices.
Material and Build
The tool is made from cobalt-containing high speed steel, a material commonly used for cutting tools. The titanium plating adds a surface treatment that can help resist wear. The straight shank allows the drill to be held in a standard chuck. External cooling is specified, meaning coolant is applied externally during operation.
Size and Practical Fit
Ten sizes are listed: 3, 4, 5, 6, 8, 10, 12, 16, 18 and 20mm. The maximum depth of cut is 20mm, and the blade size is 20mm. Colour options include M3X90, M4X90, M5X90, M6X90, M8X90, M10X90, M12X90, M14X90, M16X90, M18X90 and M20X90, giving a range of length choices for different tasks.
Uses and Placement

This spot drill is suited to metalworking tasks where a precise pilot hole or chamfer is required. It can be used in workshop or professional settings, as well as for home DIY projects involving metal. The external cooling method fits routine drilling operations.
Event or Professional Use
In professional metalworking, a spot drill helps create an accurate starting point for larger drills. The cobalt high speed steel and titanium coating are appropriate for this type of work. The straight shank fits standard chucks, and external cooling can be used to manage heat. Sizes from 3mm to 20mm cover a range of hole diameters.
Everyday Home Use
For home workshops, this spot drill offers a way to start holes accurately in metal. The M3X90 to M20X90 options allow selection based on the task. The 20mm maximum depth of cut and 20mm blade size are stated specifications. External cooling is required, so a suitable coolant setup is needed.
Benefits and Buying Value

The spot drill provides a single tool for creating pilot holes and chamfers, with the durability associated with cobalt high speed steel and titanium plating. Its range of sizes adds flexibility. Each order includes one spot drill.
Reuse and Low Maintenance
The titanium coating may help extend the tool's life when used correctly. External cooling helps manage heat, which can support consistent performance. To maintain the tool, keep it clean and store it in a dry place. No specific maintenance instructions are provided beyond these general practices.
Why Choose This Product
This spot drill combines cobalt high speed steel with a titanium plated surface, a straight shank, and external cooling. It is available in ten sizes from 3mm to 20mm, with colour options from M3X90 to M20X90. The maximum depth of cut is 20mm and the blade size is 20mm. It is a practical choice for metal drilling tasks requiring a precise start.
