Inserts Threading R/LT**N/W I.C S d Threading inserts 16 9.525 3.97 4.4 A BSPT Whitworth taper pipe thread Turning External right hand Internal right hand ISO 7·1: 1984 B.S.21:1985 Internal left hand External left hand HC1 (PVD) Standard BSPT HC1 (PVD) B ISO Pitch (T.P.i) External Internal YBG201 YBG205 YBG201 YBG205 Milling 16 RT16.01W-11BSPT ż RT16.01N-11BSPT ż 11.00 16 LT16.01W-11BSPT Ɣ LT16.01N-11BSPT ż 16 RT16.01W-14BSPT ż RT16.01N-14BSPT ż 14.00 16 LT16.01W-14BSPT ż LT16.01N-14BSPT ż 16 RT16.01W-19BSPT ż RT16.01N-19BSPT ż 16 16 19.00 LT16.01W-19BSPT RT16.01W-28BSPT ż ż LT16.01N-19BSPT RT16.01N-28BSPT ż ż C 28.00 16 LT16.01W-28BSPT ż LT16.01N-28BSPT ż ƔEx stockżOn demand HC1 Coated carbide Drilling Tool holders SWR/L SNR/L A439-A440 A441-A442 D Information Technical E Index System code A412 Grade selection A411 Technical info A447 Cutting data A446 A 419