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T ECHNICAL INFORMATION 53496
Subject Change on Impact Bolt, Tool Holder and addition of Cap
For Models HR3850B,HR3850,HR3851(Rotary Hammer Drills)
Note This information applies to
HR3850B ------------ All countries
HR3850,HR3851------- U.S.A. only
Description As illustrated below, Impact Bolt and Tool Holder have been changed for improvement in
endurance. Cap has been added as dust cover.
Current New
Tool Holder
Cap(added)
101.5
Groove
105.0
Impact Bolt
69.0
65.0
Interchangeability(I/C)
Item No. Current part Q'ty I/C New part Q'ty Note
Impact Part Impact Bolt
51 1 No 1
322218-6 323718-9
58 Tool Holder Tool Holder Interchangeable as a set
1 No 1
322221-7 323717-1
Cap
117 1
421596-2
Implementation
HR3850B : From serial No. 38496E (Mar.1997)
HR3851 : From serial No. 30478E (Mar. 1997)
HR3850 : Discontinued for U.S.A.