SP

Spiral Fluted Taps for Alloy Steels

Specification

■ Spiral Fluted Taps suitable for Alloy Steels and High E Carbon Steels. Due to improvement of chip ejection and reduction of tapping torque, SP is optimal for blind hole Oxide tapping of larger diameter. 1 1/8U~

Recommended Tapping Speed depending on Materials

High carbon steels Alloy steels

3〜8 3〜8

For icon explanation, refer to P.50

TYPE:1

Segment:1C

SizeClassCodeChamferL (inch)ℓ (inch)ℓn (inch)ℓs (inch)Ds (inch)K (inch)ℓk (inch)No. of flutesType
For Unified Threads
1-8UNC2BXSSU16XYEEXJ2.5P6.2991.457-3.2280.80.60.81241
1 1/8-8UN2BXSSU18XYEEXJ2.5P7.0871.732-3.6220.8960.6720.87541
1 1/4-8UN2BXSSU20XYEEXJ2.5P7.0871.929-3.6221.0210.766141
1 3/8-8UN2BXSSU22XYEEXJ2.5P7.8742.165-4.0161.1080.8311.06241
1 1/2-8UN2BXSSU24XYEEXJ2.5P7.8742.323-4.0161.2330.9251.12541