Overall lengthThread lengthShank dia. Size of squareLength of square
ELX CARBCI Carbide Taps for Cast IronsLDs Kℓk
SizeClassCodeChamferL (inch)ℓ (inch)Ds (inch)K (inch)ℓk (inch)No. of flutesType
1/2-13UNCGH5Y83876 Y838774P 1.5P3.3751.6560.3670.2750.43745
1/2-20UNFGH3 GH5Y83828 Y83829 Y83878 Y838794P 1.5P 4P 1.5P3.3751.6560.3670.2750.43745
5/8-11UNCGH3 GH5Y83834 Y83835 Y83884 Y838854P 1.5P 4P 1.5P3.8121.8120.480.360.56245
5/8-18UNFGH3 GH5Y83836 Y83837 Y83886 Y838874P 1.5P 4P 1.5P3.8121.8120.480.360.56245