Century Drill & Tool 93202 – 1/4-18 NPT / 7/16 Combo Tap & Drill Bit

Overview

The Century Drill & Tool 93202 combo is a compact, hand-friendly solution designed for small-diameter threading projects. It pairs a 1/4-18 NPT internal thread tap with a 7/16" drill bit, delivering a streamlined workflow from hole prep to threaded connection. This setup is well suited for DIY repairs, shop maintenance, and professional settings where manual control is key.

With National Pipe Thread standards in mind, this combo is built for versatile compatibility across a variety of pipes, fittings, and plumbing components. The result is a practical tool that supports precise threading without relying on powered equipment.

Precision, durability, and hand-cutting efficiency

The tap features precision-cut threads produced by high-quality cutting edges, ensuring consistently accurate internal threading across a range of materials. It is fully heat treated and tempered, delivering file-hard threads that resist wear and extend tool life through repeated use. This design is optimized for hand cutting, offering the control and accuracy needed for manual threading projects.

• Precision-cut internal threads for reliable pipe connections
• Heat-treated, tempered metal for enhanced wear resistance
• Optimized for hand cutting with manual tools
• National Pipe Thread standards ensure broad compatibility
• Includes a matching 7/16" drill bit for a complete workflow

Use cases and practical guidance

Designed for hand tools, this combo is ideal for DIYers, plumbers, and professionals tackling on-site or workshop tasks where a controllable, hands-on approach is preferred. The combination supports precise preparation and threading in a variety of materials, making it a flexible choice for many threading projects.

• DIY plumbing repairs and small-bore piping projects
• Maintenance tasks in workshops and service vans
• Close-quarters threading where power tools are impractical
• Projects requiring repeatable, clean thread profiles

What you get and best practices

The set provides a complete workflow with the included drill bit, enabling hole prep and threading in a single, portable package. For best results, deburr holes after drilling and test-fit fittings after threading, adjusting pressure and speed to material resistance.

• 1 x 1/4-18 NPT tap
• 1 x 7/16" drill bit
• Compact bundle designed for hand use and easy transport