SK (ISO) tool holders
SK (ISO) Combi Shell Mill Adapters – SK30, SK40 and SK50 (DIN 69871)
A combi shell mill adapter is a combi arbor that drives both shell end mills and face mills. PTP makes them with an SK (ISO) shank (DIN 69871 / ISO 7388-1) in SK30, SK40 and SK50: cutter bores Ø16–40 mm, gauge lengths 50–70 mm, 13 ordering codes in all. They are pulled into the spindle by DIN 69872 pull studs: M12 on SK30, M16 on SK40 and M24 on SK50. Taper AT3 or better, TIR 0.005 mm max.
Combi Shell Mill Adapters, SK (ISO) shank
PTP catalogue drawing, dimensions in mm
All 13 SK (ISO) combi shell mill adapters
One table per taper size. Every ordering code opens its own page with its dimensions (mm).
SK30 combi shell mill adapters: 3 ordering codes
| Ordering code | Cutter Bore Ø (d) | Gauge Length (GPL) | C | H | Pilot Ø |
|---|---|---|---|---|---|
| 47ISO30CSMA1650 | 16 mm | 50 mm | 32 mm | 27 mm | 17 mm |
| 47ISO30CSMA2250 | 22 mm | 50 mm | 40 mm | 31 mm | 19 mm |
| 47ISO30CSMA2755 | 27 mm | 55 mm | 48 mm | 33 mm | 21 mm |
SK40 combi shell mill adapters: 5 ordering codes
| Ordering code | Cutter Bore Ø (d) | Gauge Length (GPL) | C | H | Pilot Ø |
|---|---|---|---|---|---|
| 47ISO40CSMA1660 | 16 mm | 60 mm | 32 mm | 27 mm | 17 mm |
| 47ISO40CSMA2260 | 22 mm | 60 mm | 40 mm | 31 mm | 19 mm |
| 47ISO40CSMA2760 | 27 mm | 60 mm | 48 mm | 33 mm | 21 mm |
| 47ISO40CSMA3260 | 32 mm | 60 mm | 58 mm | 38 mm | 24 mm |
| 47ISO40CSMA4060 | 40 mm | 60 mm | 70 mm | 41 mm | 27 mm |
SK50 combi shell mill adapters: 5 ordering codes
| Ordering code | Cutter Bore Ø (d) | Gauge Length (GPL) | C | H | Pilot Ø |
|---|---|---|---|---|---|
| 47ISO50CSMA1670 | 16 mm | 70 mm | 32 mm | 27 mm | 17 mm |
| 47ISO50CSMA2270 | 22 mm | 70 mm | 40 mm | 31 mm | 19 mm |
| 47ISO50CSMA2770 | 27 mm | 70 mm | 48 mm | 33 mm | 21 mm |
| 47ISO50CSMA3270 | 32 mm | 70 mm | 58 mm | 38 mm | 24 mm |
| 47ISO50CSMA4070 | 40 mm | 70 mm | 70 mm | 41 mm | 27 mm |
Questions about SK (ISO) combi shell mill adapters
Which pull stud does an SK combi shell mill adapter take?
The pull stud of its taper size: M12 on SK30, M16 on SK40 and M24 on SK50. Use a DIN 69872 pull stud with a 15° head.
What goes with an SK combi shell mill adapter?
A shell end mill or face mill whose bore matches the arbor (Ø16, 22, 27, 32 and 40 mm).