Custom Pilot Taps, Two-Section Taps and Deep-Hole Taps
Pilot guides for concentric threads, two-section taps and extended deep-hole taps.
Request a quote
A pilot tap has a plain guide section ahead of the thread that keeps the thread concentric with an existing bore — useful for stepped holes, thread repair and parts with tight coaxiality requirements. A two-section tap with a relief groove cuts two thread sections in one pass. Deep-hole taps are extended and designed for better chip evacuation.
Pilot diameter and length, the position of both thread sections, overall length and flute type are all set from your part drawing.
Typical applications: hydraulic valve blocks, engine and gearbox parts, long threaded holes, thread repair
What we customize
- Pilot diameter and length to suit the bore
- Two thread sections with relief groove
- Extended shanks and deep-hole chip evacuation
- Coolant-through
- Spiral-flute, spiral-point, straight-flute or forming
- Tool material and coating matched to the workpiece
No drawing? Send a sample or photos — design drawing within 24 hours.
Examples we have made
Pilot taps
Pilot taps with two thread sections
Deep-hole taps
Questions
Why do my taps break in deep holes?
Usually poor chip evacuation and excessive torque. We choose the flute type (spiral flute, spiral point or forming), the extension and coolant-through for your hole depth, material and machine, and split the job into roughing and finishing taps when needed.
Send your drawing — get a tap design and quote within 24 hours
No drawing? A sample, photos or the thread data are enough. WhatsApp / WeChat +86 135 8099 9993 · export@supertap.cn