{"id":13300,"date":"2024-06-12T16:12:08","date_gmt":"2024-06-12T07:12:08","guid":{"rendered":"https:\/\/www.decoboco.info\/en\/?p=13300"},"modified":"2026-09-24T13:46:27","modified_gmt":"2026-09-24T04:46:27","slug":"makita-fans-electric-hammer-hm001g-stuck-pivot-shaft","status":"publish","type":"post","link":"https:\/\/www.decoboco.info\/en\/20240612\/convenient-tips\/makita-fans-electric-hammer-hm001g-stuck-pivot-shaft","title":{"rendered":"Makita fans, take note: electric hammer HM001G\u2014complete guide to conquering the “stuck pivot shaft”!"},"content":{"rendered":"
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On the Inazuma 1200\/GS1200SS, the problem of “pivot shafts that won’t come out is extremely common.” <\/span><\/strong>

The only options are “hit it hard or use hydraulics,” <\/span><\/strong>and either way
it’s time-consuming and risky work. <\/span><\/strong>

I wanted to find a safer approach somehow\u2014thinking, thinking\u2014
Eureka! (*’\u03c9’*) <\/span><\/strong>
I’ll drive it out with an electric hammer! <\/p>\n\n\n\t\t

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\n\t\t\t\t\t\n\t\t\t\t\t\t\"\"\/\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t
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\n\t\t\t\t\t\n\t\t\t\t\t\tMakita cordless hammer HM001G HM001GZK\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t\t\t
\u30de\u30ad\u30bf(Makita)<\/div>\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\"\"\n\t\t\t\t\t\t\t\u53e3\u30b3\u30df\u3092\u898b\u308b<\/span>\n\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\tAmazon\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t<\/div>\n\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\tRakuten\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\tYahoo!\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\"\"\n\t\t\t\t\t\u30dd\u30c1\u30c3\u30d7<\/span>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\n\n\t\t
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\n\t\t\t\t\t\n\t\t\t\t\t\t\"\"\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t
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\n\t\t\t\t\t\n\t\t\t\t\t\tSDS-max Bosch SDS-max Bullpoint 280mm MAXBP-280S\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t\t\t
\u30dc\u30c3\u30b7\u30e5(BOSCH)<\/div>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\u00a52,270\t\t\t\t\t\t\uff082026\/09\/20 21:33\u6642\u70b9 | Amazon\u8abf\u3079\uff09<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\"\"\n\t\t\t\t\t\t\t\u53e3\u30b3\u30df\u3092\u898b\u308b<\/span>\n\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\tAmazon\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t<\/div>\n\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\tRakuten\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\tYahoo!\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\"\"\n\t\t\t\t\t\u30dd\u30c1\u30c3\u30d7<\/span>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\n\n\n\n\n\n\n
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Incredibly effective\u2014I was amazed! <\/h2>\n\n\n\n
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Natural interference fit plus Loctite equals rust,
and the resulting stuck condition is extreme. <\/span><\/strong>

Even full-power hammer blows won’t budge it.
The shaft itself gets crushed from the pounding.
The noise is loud, disturbing the neighbors, and considering the risks, <\/span><\/strong>
I’d rather avoid the job altogether. <\/p>\n\n\n\n

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I bought the electric hammer HM001G on a whim. <\/h2>\n\n\n\n
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Hammer drill HR005G or electric hammer HM001G? <\/span><\/strong>I really had to think about it.

The hammer HM001G has an impact energy of 9.4 joules, <\/span><\/strong>
while the hammer drill HR005G has an impact energy of 8.0 joules. <\/span><\/strong>

The difference is 1.4 joules, but honestly I couldn’t tell how significant that is.
Since the main goal was to extract the shaft, I went with the electric hammer HM001G. <\/a><\/span><\/strong>
*I didn’t go for the top-tier 80V Max model. <\/p>\n\n\n\n

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The shaft specification is SDS-Max, solid and direct. <\/h2>\n\n\n\n
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The shaft is 18 mm in diameter, so it’s robust and transmits force directly.
Attachment and removal are simple: “just insert to attach, release the lock and pull to remove.” <\/span><\/strong>

I’m constantly amazed by how tools keep evolving these days. <\/p>\n\n\n\n

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It’s hardened! Please grind it flat. <\/h2>\n\n\n\n
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The bit I chose was BOSCH SDS-Max Bull Point 280 mm MAXBP-280S. <\/a><\/span><\/strong>

I tried applying the bit to see if it could cut, but it wasn’t practical.
I just ground it down quickly with a 200V belt sander. <\/p>\n\n\n\n

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Always make a guide first! <\/span><\/strong>
Build a guide to prevent any chance of the bit slipping and ensure safety. <\/p>\n\n\n\n

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Let me introduce the features. <\/h2>\n\n\n\n
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To change the bit, “press down and pull the bit to remove it.” <\/span><\/strong>*The spring tension is quite strong. <\/p>\n\n\n\n

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The Makita grip can be “rotated left to release and repositioned freely.” <\/span><\/strong><\/p>\n\n\n\n

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Impact power has five settings. <\/span><\/strong>

It’s a tool that does exactly what it’s designed for, nothing more, nothing less (*\u00b4\u03c9\uff40*).
It can even be used for stump removal, so its applications are somewhat limited. <\/span><\/strong>

Still, I think it’s worth having on hand before you run into trouble.
Now stuck pivot shafts are no longer something to fear! <\/span><\/strong>
If you have one, you’re guaranteed to win\u2014 <\/span><\/strong>that’s what I think. <\/p>\n\n\n\n

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