SK (ISO) tool holders
SK (ISO) Morse Taper Adapters – SK30, SK40 and SK50 (DIN 69871)
A Morse taper adapter holds Morse-taper-shank drills and reamers in the machine spindle. PTP makes them with an SK (ISO) shank (DIN 69871 / ISO 7388-1) in SK30, SK40 and SK50: MT1 to MT5, gauge lengths 45–180 mm, 25 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, balanced G2.5 @ 15,000 rpm.
Morse Taper Adapters, SK (ISO) shank
PTP catalogue drawing, dimensions in mm
All 25 SK (ISO) Morse taper adapters
One table per taper size. Every ordering code opens its own page with its dimensions (mm).
SK30 Morse taper adapters: 5 ordering codes
| Ordering code | Morse Taper | Gauge Length (GPL) | C |
|---|---|---|---|
| 46ISO30MTA145 | MT1 | 45 mm | 25 mm |
| 46ISO30MTA1105 | MT1 | 105 mm | 25 mm |
| 46ISO30MTA260 | MT2 | 60 mm | 32 mm |
| 46ISO30MTA2120 | MT2 | 120 mm | 32 mm |
| 46ISO30MTA380 | MT3 | 80 mm | 40 mm |
SK40 Morse taper adapters: 8 ordering codes
| Ordering code | Morse Taper | Gauge Length (GPL) | C |
|---|---|---|---|
| 46ISO40MTA145 | MT1 | 45 mm | 25 mm |
| 46ISO40MTA1120 | MT1 | 120 mm | 25 mm |
| 46ISO40MTA260 | MT2 | 60 mm | 32 mm |
| 46ISO40MTA2120 | MT2 | 120 mm | 32 mm |
| 46ISO40MTA375 | MT3 | 75 mm | 40 mm |
| 46ISO40MTA3135 | MT3 | 135 mm | 40 mm |
| 46ISO40MTA495 | MT4 | 95 mm | 50 mm |
| 46ISO40MTA4165 | MT4 | 165 mm | 50 mm |
SK50 Morse taper adapters: 12 ordering codes
| Ordering code | Morse Taper | Gauge Length (GPL) | C |
|---|---|---|---|
| 46ISO50MTA145 | MT1 | 45 mm | 25 mm |
| 46ISO50MTA1120 | MT1 | 120 mm | 25 mm |
| 46ISO50MTA1180 | MT1 | 180 mm | 25 mm |
| 46ISO50MTA245 | MT2 | 45 mm | 32 mm |
| 46ISO50MTA2135 | MT2 | 135 mm | 32 mm |
| 46ISO50MTA2180 | MT2 | 180 mm | 32 mm |
| 46ISO50MTA345 | MT3 | 45 mm | 40 mm |
| 46ISO50MTA3150 | MT3 | 150 mm | 40 mm |
| 46ISO50MTA3180 | MT3 | 180 mm | 40 mm |
| 46ISO50MTA475 | MT4 | 75 mm | 50 mm |
| 46ISO50MTA4180 | MT4 | 180 mm | 50 mm |
| 46ISO50MTA5120 | MT5 | 120 mm | 65 mm |
Questions about SK (ISO) Morse taper adapters
Which pull stud does an SK Morse taper 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 Morse taper adapter?
Drills and reamers with a Morse taper shank: MT1, MT2, MT3, MT4 and MT5.