Prime-Line RP77355 1/8″, 1/4″, 3/8″, 1/2″ and 3/4″ Pipe Nipple extractor set

Prime-Line RP77355 Five-Piece Pipe Nipple Extractor Set, 1/8″, 1/4″, 3/8″, 1/2″, 3/4″ Sizes, Hardened Steel, Square-Drive/Hex-Drive Compatible, For Removing Broken Nipples from Fittings & Valves

Condition: New, not used; all pieces intact in original holder/case (no missing components).

This Prime-Line RP77355 pipe nipple extractor set is a compact, jobsite-ready kit for removing broken or corroded nipples from tees, elbows, valves, manifolds, hydrant bodies, and equipment ports. Each extractor grips from the inside of the nipple: insert the correctly sized tool, turn counter-clockwise with a wrench or tap handle, and the fluted/expanding profile bites as torque increases—backing the stuck piece out without damaging the female threads in the fitting. The five most common plumbing/HVAC sizes (1/8″–3/4″ NPT) cover gas, water, air, and hydronic service work on residential and light-commercial systems.

Features

• Five extractors included: 1/8″, 1/4″, 3/8″, 1/2″, 3/4″ nominal NPT sizes.
• Internal-grip design: Removes pipe nipples broken off flush with a fitting—no need for external grip or access.
• Hardened steel construction: Durable, re-usable tools for shop or field use.
• Square/hex drive friendly: Turn with a tap wrench, adjustable wrench, or 4-point socket for controlled torque.
• Progressive biting profile: The more you turn, the tighter it grips to back out seized nipples.
• Compact organizer: Keeps sizes separated and easy to identify in a service bag.

Applications / Spheres of Use

• Plumbing service: Remove corroded nipples from water heater unions, faucets, hose bibbs, tees, and elbows.
• HVAC & Hydronics: Boiler/drain, air-separator, and radiator connections; condensate and drain fittings.
• Gas piping (by qualified personnel): Black iron and galvanized nipples on furnaces, unit heaters, and appliances.
• Compressed air / shop utilities: Manifold ports and regulator bodies.
• Facility maintenance: Quick repairs where female threads must be preserved.

How to Use (best practice)

1. Select the correct size extractor for the nominal nipple.
2. Apply penetrating oil, allow dwell time on heavily corroded pieces.
3. Insert extractor into the nipple and seat it firmly (light taps if needed).
4. Turn counter-clockwise with a wrench/tap handle; maintain steady pressure.
5. Clean female threads and re-dope/tape before installing the replacement nipple.

Cross-Referenced / Alternate Prime-Line Items

• Prime-Line RP77354 / RP77356 (adjacent size ranges—varies by region/packaging).
• Prime-Line individual nipple extractor SKUs (sold separately by size).

Comparable Products

• Superior Tool internal pipe nipple extractor sets (1/8″–3/4″).
• RIDGID internal pipe wrenches (e.g., 342 series) for similar inside-grip removal.
• Husky / Milwaukee / Irwin spiral and internal nipple extractor assortments with overlapping sizes.

Use in Larger Systems / Assemblies

Commonly used during replacement of:

• Water heaters, boilers, circulator pumps, air handlers, and coil connections.
• Gas valves, regulators, union tees, and appliance stubs (qualified gas-fitters only).
• Condensate traps and drains on RTUs and furnaces.
  Pair with left-hand drill bits or heat-and-quench techniques for severe corrosion (as permitted by code and material).

Trademarks

Prime-Line and any other brand names mentioned are trademarks or registered trademarks of their respective owners. All trademarks are used strictly for identification and comparison purposes.

Related

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Common Requests:

1. “Does the RP77355 work on both galvanized and black iron nipples?”
2. “Which wrench style is best—tap handle or adjustable—for these extractors?”
3. “Tips to avoid damaging female threads when removing stuck nipples.”
4. “Will the 3/4 in extractor handle schedule 80 nipples?”
5. “What penetrating oil or heat technique is recommended for badly seized fittings?”

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