Removing cast iron fittings, specifically breaking the hub off a threaded cast 90 without damaging the threaded nipple going into the closet bend, is a difficult and time-consuming process.

No purpose-built tool to quickly and safely remove cast iron threaded fittings without damaging the adjacent pipe or threads.

Severity

3Medium

Willingness to Pay

implied

Added

May 25, 2026

Workarounds Described

Uses a chisel to score the hub then break it with a screwdriver

App Concept

CastBreaker Pro

A handheld hydraulic or mechanical tool that clamps onto a cast iron hub and applies controlled force to crack the hub evenly, leaving the threaded nipple intact. Eliminates the need for manual chiseling and reduces risk of damage to adjacent pipes.

Key Features

Adjustable clamp for various hub sizes
Controlled hydraulic cracking mechanism (manual or battery-powered)
Safety guard to contain cast iron fragments
Ergonomic handles for two-person operation on larger fittings

Target Users: Plumbers and pipefitters performing cast iron pipe repairs in residential and commercial plumbing, especially those dealing with older threaded joints

Revenue Model: $499 one-time purchase per tool, with optional $99/year warranty and replacement parts subscription

Existing Solutions Mentioned

chiselscrewdriver

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