Cleveland
Cleveland C64117 Pipe Tap 1/4"-18 Semi-Bottoming 4 Flutes NPS
1/4"-18 NPS semi-bottoming pipe tap with four flutes cuts internal threads in pipe and conduit
- TypeTaps
- Cuts precise NPS threads with 1/4"-18 semi-bottoming design
- Four flutes clear chips efficiently for smoother tapping
- High-speed steel construction resists wear during repeated use
- Bright uncoated finish reduces friction on pipe materials
- Right-hand thread orientation matches standard pipe fittings
Thread size and purpose
This Cleveland C64117 pipe tap cuts internal threads to the 1/4"-18 NPS standard using four straight flutes. It suits maintenance technicians and pipefitters who need to create or repair straight mechanical joints in conduit or pipe assemblies.
Material and cutting behaviour
High-speed steel construction resists wear when threading steel or iron pipe by hand or with a powered driver. The bright uncoated finish and semi-bottoming chamfer help the tap start true and clear chips through the 1 1/16 in thread length without excessive torque.
Shank fit and drill preparation
The 2 7/16 in overall length fits standard tap holders and wrenches for comfortable leverage. A 75 percent thread drill size of .4375 in prepares the hole for proper engagement, while the right-hand thread direction matches conventional piping practice.
Highlights
- Cuts precise NPS threads with 1/4"-18 semi-bottoming design
- Four flutes clear chips efficiently for smoother tapping
- High-speed steel construction resists wear during repeated use
- Bright uncoated finish reduces friction on pipe materials
- Right-hand thread orientation matches standard pipe fittings
Specifications
| Brand | CLEVELAND |
|---|---|
| Type | Taps |
Questions about this item
How do I install the Cleveland C64117 1/4"-18 NPS tap and what step is often missed?
Drill a .4375 in hole to 75 percent thread depth, then run the tap straight with steady pressure; the step often missed is keeping the tap perpendicular to avoid tapered threads in the straight NPS form.
What maintenance or replacement will this high-speed steel tap need later?
The bright uncoated flutes dull with use; replace the tap when threads show tearing or when torque rises sharply, as resharpening a 4-flute semi-bottoming geometry is impractical.
What limit appears first during sustained threading with this tap?
Chip evacuation in the four straight flutes becomes the bottleneck; packed chips increase torque and risk breakage before the high-speed steel itself loses hardness.
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