ZELX MOLD NPT

Hand Taps for Hard-to-Machine Materials For American Taper Pipe Threads

Specification

■ Suitable for hard steels of 35 ~ 45HRC, such as forgings and thermal refined steels of high carbon steels and alloy steels, and die steels.

Recommended Tapping Speed depending on Materials

Thermal re ned steels Tool steels

〜5 〜5

35~45HRC For icon explanation, refer to P.50

TYPE:1 TYPE:2

Segment:1H

SizeClassCodeChamferL (inch)ℓ (inch)Projection (inch)Ds (inch)K (inch)ℓk (inch)No. of flutesType
For American PipeThreads
NPT 1/8-27ANSI GY896413P2.1250.750.3120.4370.3280.37541
NPT 1/4-18ANSI GY896433P2.4371.0620.4590.5620.4210.43741
NPT 3/8-18ANSI GY896443P2.5621.0620.4540.70.5310.541
NPT 1/2-14ANSI GY896453P3.1251.3750.5790.6870.5150.62542
NPT 3/4-14ANSI GY896463P3.251.3750.5650.9060.6790.68752