JINING QINFENG MACHINERY HARDWARE CO.,LTD
JINING QINFENG MACHINERY HARDWARE CO.,LTD
Home> News> The difference between BT Tool Holder and SK Tool Holder
April 22, 2020

The difference between BT Tool Holder and SK Tool Holder

Sk hilt belongs to high speed hilt, which is a type of BT hilt. The taper hole of machining center can be divided into two categories: general system with 7:24 taper and HSK vacuum system with 1:10 taper. There are five standards and specifications for universal tool shank with 7:24 taper, namely NT (traditional type), DIN 69871 (German standard), IS0 7388 / 1 (International Standard), MAS BT (Japanese standard) and NSI / ASME (American Standard). At present, DIN 69871 (JT) and MAS BT are the most widely used tool handles in China.
There are many kinds and models of BT hilt. SK hilt belongs to high-speed hilt, which is a type of BT hilt.
The main differences of SK Tool Holder are as follows:
1. Difference in appearance and size.
2. Higher speed, up to 40000 rpm, suitable for high-speed machining.
3. It is equipped with SK nut and Sk Collet.
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