Identifying HSK Tool Holder Interface

If you are ever tasked with the challenge of identifying an HSK tool holder interface, the following will guide you through the differences and dimensions of the machine spindle interface (upper portion) of the HSK holder. These high-precision clamping tools are available in several configurations, including heat shrink construction, collet chucks, Weldon shank adapters, and arbor adapter options. Additionally, other unique features can include internal coolant tubes, Balluff chip accommodation, slimline designs, and long-reach models, among other attributes. Furthermore, the HSK tool clamping systems are classified by universal DIN standards (German industry norm classification) and come in various sizes and dimensions. Here’s how to identify the most common ones below.

DIN 68893-1 includes HSK-A 63, HSK-A 80, HSK-A 100, HSK-A 40 and HSK-A 50

HSK-A	d1	d9 max.	l1	f1	f2 min.	b1	b2	b3	M
40	40	34	20	20	35	8,05	9	11	M12x1
50	59	42	25	26	42	10,54	12	14	M16x1
63	63	53	32	26	42	12,54	16	18	M18x1
80	80	68	40	26	42	16,04	18	20	M20x1,5
100	100	85	50	29	45	20,02	20	22	M24x1,5

DIN 69893-5 includes HSK-E32, HSK-E 40 and HSK-E 50

HSK-E	d1	d9 max.	l1	f1	f2 min.	M
32	32	26	16	20	35	M10x1
40	40	34	20	20	35	M12x1
50	50	42	25	26	42	M16x1

DIN 69893-6 includes HSK-F 63

HSK-F	d1	d9 max.	l1	f1	f2 min.
63	63	53	25	26	42

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Identifying HSK Tool Holder Interface

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