B

Unifi ed fi ne screw thread (UNF)

Shank materialSteelshankCarbide shank“Tsuppari-Ichiban”
eterInsert size6IR11IR16IR6IR11IR16IR16IR
Nominal sizTPIPitch diameLead angleHolder Cat. No. Insert Cat. No.SNR0006H06-2SNR0006H06-3 SNR0008H06-2SNR0008H06-3 SNR0010K11-2SNR0013L11-2SNR0016M16 SNR0016M16-2CNR0020P16 CNR0025R16SNR0006K06SC-2 SNR0006K06SC-3 SNR0008K06SC-2SNR0008K06SC-3SNR0010M11SCSNR0010M11SC-2SNR0012P11SCSNR0012P11SC-2 SNR0016R16SCSNR0016R16SC-TSNR0016Q16TCNR0020R16DTTCNR0025S16DT
3/824UNF248842º11´(IR24UN)
-.IRA60
º´(IR20UN)
7/16-20UNF2010.29215IRA60
º´(IR20UN)
1/2-20UNF2011.87157IRA60
º´(IR18UN)
9/16-18UNF1813.37155IRA60
º´(IR18UN)
5/8-18UNF1814.96143IRA60
3/4-16UNF1618.021º36´IR16UN
7/8-14UNF1421.051º34´IR14UN
1-12UNF1224.031º36´IR12UN
1 1/8-12UNF1227.21º25´IR12UN
1 1/4-12UNF1230.381º16´IR12UN
1 3/8-12UNF1233.551º09´IR12UN
1 1/2-12UNF1236.731º03´IR12UN

Unifi ed extra fi ne screw thread (UNEF)) H

Shank material Steel shank Carbide shank “Tsuppari-Ichiban”

Insert size6IR11IR16IR6IR11IR16IR16IR
Holder Cat.
No.I
Insert Cat.
No.
3/8329.011º61´IR32UN
7/162810.521º57´IR28UN
1/22812.111º37´J IR28UN
9/162413.61º42´IR24UN
5/82415.191º27´IR24UN
11/162416.771º15´IR24UN
3/42018.221º27´IR20UN
13/162019.811º17´K IR20UN
7/82021.41º08´IR20UN
15/162022.991º01´IR20UN
12024.570º94´IR20UN
1 1/161826.070º99´IR18UN
1 1/81827.660º93´IR18UN
1 3/161829.250º88´L IR18UN
1 1/41830.830º84´IR18UN
1 5/161832.420º79´IR18UN
1 3/81834.010º76´IR18UN
1 7/161835.60º72´IR18UN
1 1/21837.180º69´M IR18UN
1 9/161838.770º66´IR18UN
1 5/81840.360º64´IR18UN
1 11/161841.950º61´IR18UN

Note : The above tables show correspondence of internal toolholders at the time of setting clearance between thread and toolholder to 3 mm (1 mm in case of SN type) and the fi nishing stock to 0.1 mm.