HSK-A Threaded Mill Adapters – HSK-A50, HSK-A63 and HSK-A100 (DIN 69893-1)

A threaded mill adapter drives milling cutters with a threaded (screw-in) shank. PTP makes them with an HSK-A shank (DIN 69893-1 / ISO 12164-1) in HSK-A50, HSK-A63 and HSK-A100: M6 to M16 threads, gauge lengths 50–295 mm, 34 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 @ 25,000 rpm.

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Threaded Mill Adapters, HSK-A shank: technical drawing with dimensions — Threaded Mill Adapters with an HSK-A shank, from the PTP catalogue. Click to open it full size.

All 34 HSK-A threaded mill adapters

One table per taper size. Every ordering code opens its own page with its dimensions (mm).

HSK-A50 threaded mill adapters: 6 ordering codes

Ordering code	Thread	Bore Ø (d)	Gauge Length (GPL)	C	G
46HSKA50TMA0650	M6	6.5 mm	50 mm	11 mm	14.5 mm
46HSKA50TMA0675	M8	6.5 mm	75 mm	11 mm	16 mm
46HSKA50TMA0850	M8	8.5 mm	50 mm	13.5 mm	18.5 mm
46HSKA50TMA0875	M6	8.5 mm	75 mm	13.5 mm	20 mm
46HSKA50TMA1050	M8	10.5 mm	50 mm	18.5 mm	23 mm
46HSKA50TMA1075	M8	10.5 mm	75 mm	18.5 mm	24.5 mm

HSK-A63 threaded mill adapters: 19 ordering codes

Ordering code	Thread	Bore Ø (d)	Gauge Length (GPL)	C	G
46HSKA63TMA0650	M6	6.5 mm	50 mm	11 mm	14.5 mm
46HSKA63TMA0675	M6	6.5 mm	75 mm	11 mm	16 mm
46HSKA63TMA0850	M8	8.5 mm	50 mm	13.5 mm	18.5 mm
46HSKA63TMA0875	M8	8.5 mm	75 mm	13.5 mm	20 mm
46HSKA63TMA08100	M8	8.5 mm	100 mm	13.5 mm	21.5 mm
46HSKA63TMA1050	M10	10.5 mm	50 mm	18.5 mm	23 mm
46HSKA63TMA1075	M10	10.5 mm	75 mm	18.5 mm	24.5 mm
46HSKA63TMA10125	M10	10.5 mm	125 mm	18.5 mm	27.5 mm
46HSKA63TMA10175	M10	10.5 mm	175 mm	18.5 mm	37 mm
46HSKA63TMA1250	M12	12.5 mm	50 mm	23 mm	28.5 mm
46HSKA63TMA1275	M12	12.5 mm	75 mm	23 mm	30 mm
46HSKA63TMA12100	M12	12.5 mm	100 mm	23 mm	31.5 mm
46HSKA63TMA12125	M12	12.5 mm	125 mm	23 mm	33 mm
46HSKA63TMA12175	M12	12.5 mm	175 mm	23 mm	42.5 mm
46HSKA63TMA1650	M16	17 mm	50 mm	30 mm	35.5 mm
46HSKA63TMA1675	M16	17 mm	75 mm	30 mm	37 mm
46HSKA63TMA16100	M16	17 mm	100 mm	30 mm	38.5 mm
46HSKA63TMA16125	M16	17 mm	125 mm	30 mm	40.5 mm
46HSKA63TMA16175	M16	17 mm	175 mm	30 mm	42.5 mm

HSK-A100 threaded mill adapters: 9 ordering codes

Ordering code	Thread	Bore Ø (d)	Gauge Length (GPL)	C	G
46HSKA100TMA895	M8	8.5 mm	95 mm	13.5 mm	21.5 mm
46HSKA100TMA1095	M10	10.5 mm	95 mm	18.5 mm	23 mm
46HSKA100TMA1295	M12	12.5 mm	95 mm	23 mm	35 mm
46HSKA100TMA12145	M12	12.5 mm	145 mm	23 mm	41 mm
46HSKA100TMA1695	M16	17 mm	95 mm	30 mm	42.5 mm
46HSKA100TMA16145	M16	17 mm	145 mm	30 mm	49 mm
46HSKA100TMA16195	M16	17 mm	195 mm	30 mm	50 mm
46HSKA100TMA16245	M16	17 mm	245 mm	30 mm	55 mm
46HSKA100TMA16295	M16	17 mm	295 mm	30 mm	59.5 mm

Questions about HSK-A threaded mill adapters

Does an HSK-A threaded mill adapter 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.

HSK coolant tubes Spanners

What goes with an HSK-A threaded mill adapter?

Milling cutters with a threaded (screw-in) shank: M6, M8, M10, M12 and M16.