Numertap® 770

PGT and ER Tapping Collets

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  • For use in Numertap 770 Attachments when synchronous tapping.
  • Provide maximum concentricity with positive driving force.
770 PGT/ER COLLETS
Part Number A B D = 16mm L = 27. 5mm D = 20mm L = 31.5mm D = 25mm L = 34mm D = 32mm L = 40mm D = 40mm L = 46mm Inches ANSI Metric
100PGT-#8 0.168 0.131 ERT16-#8 ERT20-#8 ERT25-#8 ERT32-#8 - #8 M4
100PGT-#10 0.194 0.152 ERT16-#10 ERT20-#10 ERT25-#10 ERT32-#10 - #10 M4.5,M5
100PGT-#12 0.220 0.165 ERT16-#12 ERT20-#12 ERT25-#12 ERT32-#12 - #12 -
100PGT-012N 0.437 0.328 - - - ERT32-012N ERT40-012N 1/8 NPT -
100PGT-025 0.255 0.191 ERT16-025 ERT20-025 ERT25-025 ERT32-025 ERT40-025 1/4 M6,M6.5
100PGT-025N 0.562 0.421 - - - ERT32-025N ERT40-025N 1/4 NPT -
100PGT-031 0.318 0.238 - ERT20-031 ERT25-031 ERT32-031 ERT40-031 5/16 M7,M8
100PGT-037 0.381 0.286 - ERT20-037 ERT25-037 ERT32-037 ERT40-037 3/8 M10
100PGT-037N 0.700 0.531 - - - - ERT40-037N 3/8 NPT -
100PGT-043 0.323 0.242 - ERT20-043 ERT25-043 ERT32-043 ERT40-043 7/16 -
100PGT-050 0.367 0.275 - ERT20-050 ERT25-050 ERT32-050 ERT40-050 1/2 M12,M12.5
100PGT-050N 0.687 0.515 - - - - ERT40-050N 1/2 NPT -
100PGT-056 0.429 0.322 - - ERT25-056 ERT32-056 ERT40-056 9/16 M14
100PGT-062 0.480 0.360 - - ERT25-062 ERT32-062 ERT40-062 5/8 M16
100PGT-068 0.542 0.406 - - - ERT32-068 ERT40-068 11/16 M18
100PGT-075 0.590 0.442 - - - ERT32-075 ERT40-075 3/4 -
100PGT-081 0.652 0.489 - - - ERT32-081 ERT40-081 13/16 M20
100PGT-087 0.697 0.523 - - - - ERT40-087 7/8 M22
100PGT-093 0.760 0.570 - - - - ERT40-093 15/16 M24
100PGT-100 0.800 0.600 - - - - ERT40-100 1 M25
For ER11 collets, see Toolholding. For #2 - #6 taps use ERXX-0157, square drive not required.