HSK-A tool holders
HSK-A Weldon End Mill Holders – HSK-A50, HSK-A63 and HSK-A100 (DIN 69893-1)
A Weldon end mill holder clamps Weldon-flat (DIN 1835-B) cutter shanks with a side-lock screw. PTP makes them with an HSK-A shank (DIN 69893-1 / ISO 12164-1) in HSK-A50, HSK-A63 and HSK-A100: bores Ø6–50 mm, gauge lengths 65–130 mm, 31 ordering codes in all. HSK-A tapers are clamped by the spindle itself, so no pull stud is needed. Taper AT3 or better, TIR 0.005 mm max, balanced G2.5 @ 15,000 rpm.
Weldon End Mill Holders, HSK-A shank
PTP catalogue drawing, dimensions in mm
All 31 HSK-A Weldon end mill holders
One table per taper size. Every ordering code opens its own page with its dimensions (mm).
HSK-A50 Weldon end mill holders: 8 ordering codes
| Ordering code | Bore Ø (d) | Gauge Length (GPL) | C | Screw Thread | L |
|---|---|---|---|---|---|
| 47HSKA50WE0665 | 6 mm | 65 mm | 25 mm | M6 | 18 mm |
| 47HSKA50WE0865 | 8 mm | 65 mm | 28 mm | M8 | 18 mm |
| 47HSKA50WE1065 | 10 mm | 65 mm | 35 mm | M10 | 20 mm |
| 47HSKA50WE1280 | 12 mm | 80 mm | 42 mm | M12 | 22.5 mm |
| 47HSKA50WE1480 | 14 mm | 80 mm | 44 mm | M12 | 22.5 mm |
| 47HSKA50WE1680 | 16 mm | 80 mm | 48 mm | M14 | 24 mm |
| 47HSKA50WE1880 | 18 mm | 80 mm | 50 mm | M14 | 24 mm |
| 47HSKA50WE2080 | 20 mm | 80 mm | 52 mm | M16 | 25 mm |
HSK-A63 Weldon end mill holders: 11 ordering codes
| Ordering code | Bore Ø (d) | Gauge Length (GPL) | C | Screw Thread | L | L1 |
|---|---|---|---|---|---|---|
| 47HSKA63WE0665 | 6 mm | 65 mm | 25 mm | M6 | 18 mm | – |
| 47HSKA63WE0865 | 8 mm | 65 mm | 28 mm | M8 | 18 mm | – |
| 47HSKA63WE1065 | 10 mm | 65 mm | 35 mm | M10 | 20 mm | – |
| 47HSKA63WE1280 | 12 mm | 80 mm | 42 mm | M12 | 22.5 mm | – |
| 47HSKA63WE1480 | 14 mm | 80 mm | 44 mm | M12 | 22.5 mm | – |
| 47HSKA63WE1680 | 16 mm | 80 mm | 48 mm | M14 | 24 mm | – |
| 47HSKA63WE1880 | 18 mm | 80 mm | 50 mm | M14 | 24 mm | – |
| 47HSKA63WE2080 | 20 mm | 80 mm | 52 mm | M16 | 25 mm | – |
| 47HSKA63WE25110 | 25 mm | 110 mm | 65 mm | M18×2 | 24 mm | 25 mm |
| 47HSKA63WE32110 | 32 mm | 110 mm | 72 mm | M20×2 | 24 mm | 28 mm |
| 47HSKA63WE40125 | 40 mm | 125 mm | 80 mm | M20×2 | 30 mm | 32 mm |
HSK-A100 Weldon end mill holders: 12 ordering codes
| Ordering code | Bore Ø (d) | Gauge Length (GPL) | C | Screw Thread | L | L1 |
|---|---|---|---|---|---|---|
| 47HSKA100WE0680 | 6 mm | 80 mm | 25 mm | M6 | 18 mm | – |
| 47HSKA100WE0880 | 8 mm | 80 mm | 28 mm | M8 | 18 mm | – |
| 47HSKA100WE1080 | 10 mm | 80 mm | 35 mm | M10 | 20 mm | – |
| 47HSKA100WE12100 | 12 mm | 100 mm | 42 mm | M12 | 22.5 mm | – |
| 47HSKA100WE14100 | 14 mm | 100 mm | 44 mm | M12 | 22.5 mm | – |
| 47HSKA100WE16100 | 16 mm | 100 mm | 48 mm | M14 | 24 mm | – |
| 47HSKA100WE18100 | 18 mm | 100 mm | 50 mm | M14 | 24 mm | – |
| 47HSKA100WE20100 | 20 mm | 100 mm | 52 mm | M16 | 25 mm | – |
| 47HSKA100WE25100 | 25 mm | 100 mm | 65 mm | M18×2 | 24 mm | 25 mm |
| 47HSKA100WE32120 | 32 mm | 120 mm | 72 mm | M20×2 | 24 mm | 28 mm |
| 47HSKA100WE40120 | 40 mm | 120 mm | 80 mm | M20×2 | 30 mm | 32 mm |
| 47HSKA100WE50130 | 50 mm | 130 mm | 100 mm | M24×2 | 40 mm | 40 mm |
Questions about HSK-A Weldon end mill holders
Does an HSK-A Weldon end mill holder need a pull stud?
No. The spindle clamps the HSK-A taper from inside, so there is no pull stud. For through-spindle coolant the holder takes an HSK-A coolant tube: 47CTHA050 for HSK-A50, 47CTHA063 for HSK-A63 and 47CTHA100 for HSK-A100.
What goes with an HSK-A Weldon end mill holder?
Cutters with a DIN 1835-B (Weldon) flat on the shank, clamped by the side-lock screw (M6, M8, M10, M12, M14, M16, M18×2, M20×2 and M24×2).