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| 1939-02 | Started in Amagasaki-City as the precision machining division of Sakai Iron Works Co., Ltd. |
| 1945-06 |
Moved to 411-1, Sogai, Naka-Cho, Taka-Kun, Hyogo-Pref.,due to World War Ⅱ
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| 1952-06 | Separated and founded as Sakai Threading Tool Co., Ltd.with capital of J¥500,000.- (at present J¥54,000,000.-) |
| 1955-06 | Acquired Permission to manifest JIS mark for regular hand tap |
| 1962-08 | Invented Bent Shank Tap of High Speed Steel with #600 (it is Guide Thread at chamfer portion) |
| 1967-05 | Invented Coupler Type AH Bent Shank Taps (Tap Nib and Bent Shank are connected by Coupler mechanically) |
| 1971-11 | Built New Factory at 907-90, Sogai, Naka-Cho, Taka-Gun, Hyogo-Pref.(the place where we are now) |
| 1974-06 | Acquired Permission to manifest JIS 2 Class mark for nut taps for metric sizes coarse screw threads |
| 1974-08 | Opened head & business office at 3-2-10 Tsumori, Nishinari-Ku,Osaka (the place where we are now) |
| 1982-03 | Invented TiN Coated Taps |
| 1986-11 | Invented Lead Guide Taps. Lead Guide Taps can prevent from acting as a reamer and can form exactly high accuracy of nut threads |
| 1988-09 | Invented Modified Tandem Taps which can produce precise threads for thin nuts |
| 1994-12 | Invented Flutless Taps(Forming Taps) |
| 1997-02 | Opened Nagoya Office |
| 1999-11 | Acquired ISO 9001 Certification |
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Expert Manufacturer of Threading Tools and |
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Copyright(C) SAKAI THREADING TOOL.,LTD All rights reserved. |
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