Century Drill Tool 97529 Metric Tap Drill Bit Set 10x1.00

Product Description

The CENTURY DRILL TOOL CO INC 97529 is a metric plug-style tap and letter drill bit S combo pack designed for hand cutting thread applications. This 2-piece set pairs a 10.0 mm x 1.00 mm pitch tap with a matching letter S drill bit, giving machinists and tradespeople both the tap and the correct-size clearance drill in one package. The tap features precision-cut threads that are accurately formed for consistent, exact threading results. The tool is heat treated and tempered to achieve file-hard threads and extend service life through repeated use.

This combo set is suited for hand tapping operations in metal fabrication, mechanical repair, HVAC equipment servicing, and general trade maintenance work. The plug-style tap is the standard starting point for threading a through-hole or a hole with sufficient depth, making it the most commonly reached-for tap in field and shop settings alike. The letter S drill bit is sized to match the 10.0 mm x 1.00 mm thread form, eliminating the need to cross-reference a separate drill chart before starting the job.

Key Features

• 10.0 mm x 1.00 mm metric thread specification for precise fitment in metric-threaded applications
• Plug-style tap geometry — the standard choice for hand cutting threads in through holes and sufficiently deep blind holes
• Precision-cut, accurately formed threads for consistent, repeatable results
• Heat treated and tempered construction produces file-hard threads and extends usable tool life
• Includes matching letter S drill bit — correct sizing for this thread form without referencing a separate chart
• 2-piece combo pack sold as a single unit (EA)

Compatibility

Designed for hand tapping applications requiring a 10.0 mm x 1.00 mm metric plug tap and a corresponding letter S drill bit. Suitable for use in metals and other machinable materials where hand-cut metric threads are specified.

Installation Notes

A licensed machinist, maintenance technician, or experienced tradesperson should select the correct cutting fluid for the workpiece material before beginning. Secure the workpiece firmly before drilling and tapping to prevent movement and thread misalignment. Start the tap perpendicular to the drilled hole and apply steady, even pressure — back the tap off periodically to break chips and clear the flutes. Follow applicable shop safety practices and wear appropriate eye protection when drilling and tapping.