Draper Pipe & Conduit Threading Tools — Quick Reference
Draper Tools (UK, 100+ years) at AIMS Industrial = pipe and conduit threading range — BSPT thread chasers, metric conduit dies, die holders and complete ratchet action pipe threading kits, for electricians cutting conduit threads and trades restoring damaged pipe and bolt threads.
| Draper Product | Format | Best For |
|---|---|---|
| Imperial BSPT Thread Chaser | 1", with or without holder/guide | Restoring damaged BSPT pipe threads on site |
| Metric Conduit Die | M16, with die holder/guide | Cutting new threads on M16 electrical conduit |
| Ratchet Action Pipe Threading Kit — Metric | M4550001 | Complete kit for M16–32 metric conduit threading |
| Ratchet Action Pipe Threading Kit — BSPT | M4550002 | Complete kit for 1/2"–1 1/4" imperial pipe threading |
Note: A thread chaser restores damaged existing threads by following the original thread form; a die cuts a new thread from bare pipe or bar. Choose based on whether you're repairing or creating a thread. Brand: Draper. Companion: thread chasers, threading dies, die holders & stocks, tap & die sets, pipe threading systems.
Draper Thread Chasers, Conduit Dies & Pipe Threading Kits
Draper Tools is a UK manufacturer with over 100 years of history in trade tooling, and the Draper range AIMS Industrial stocks is focused on pipe and conduit threading: BSPT thread chasers for restoring damaged pipe threads, metric conduit dies for cutting new threads on electrical conduit, and complete ratchet action pipe threading kits that pair a die head with a ratcheting handle for one-tool site work.
BSPT thread chasers
A thread chaser follows and restores an existing, damaged thread rather than cutting a new one — useful for repairing a stripped or corroded BSPT (British Standard Pipe Taper) fitting on site without replacing the whole component. Draper's 1" BSPT thread chaser is available on its own or with a holder/guide for controlled, square application.
Metric conduit dies for electrical work
Electricians cutting threads on M16 metric electrical conduit on site use a dedicated conduit die rather than a general-purpose die, matched to conduit wall thickness and thread form. Draper's metric conduit die pairs with a die holder/guide to keep the cut square and true.
Ratchet action pipe threading kits
For threading a run of conduit or pipe on site without a bench-mounted machine, Draper's ratchet action kits combine a die head, holder and a compact ratcheting handle in one kit — the metric kit (M4550001) covers M16–32 conduit, and the BSPT kit (M4550002) covers 1/2"–1 1/4" imperial pipe. The ratchet mechanism lets the tool work in confined spaces where a full swing of a standard die handle isn't possible.
Beyond conduit: general thread repair
Thread chasers and dies aren't limited to conduit and pipe work — the same principle applies to restoring damaged bolt threads and cleaning up threads on engine blocks and other mechanical components. For a broader range of taps, dies and thread repair tooling beyond the Draper conduit-specific range, see our tap & die sets and threading dies collections.
Need help matching a thread chaser, die or threading kit to your job? contact our team or request a quote.
People Also Ask — Draper
Q: What's the difference between a thread chaser and a die?
A thread chaser follows and restores an existing, damaged thread without removing significant material — it repairs rather than creates. A die cuts a brand-new thread into bare pipe, rod or bar that has no thread yet.
Q: What is a conduit die used for?
A conduit die is used to cut threads onto the end of metal electrical conduit on site, sized to the conduit's specific wall thickness and thread form — Draper's metric conduit die covers M16 conduit, used with a die holder/guide to keep the cut square.
Q: What's the difference between BSPT and metric conduit threading?
BSPT (British Standard Pipe Taper) is an imperial pipe thread standard sized in inches (Draper's kit covers 1/2"–1 1/4"), while metric conduit threading uses metric sizes (Draper's kit covers M16–32) — the two use different thread forms and aren't interchangeable, so the tooling has to match the conduit or pipe standard in use.
Q: Can a thread chaser repair a damaged bolt thread, not just pipe?
Yes — the same thread-following principle used on pipe threads applies to restoring damaged threads on bolts and other threaded components, such as cleaning up a bruised or corroded thread before reusing a fastener.
Q: What's included in Draper's ratchet action pipe threading kit?
Each kit pairs a die head sized to the relevant standard (metric conduit or BSPT pipe) with a holder/guide and a compact ratcheting handle, letting one kit cut threads on site in confined spaces where a full swing of a standard handle isn't possible.