Seems to be a fork.

金ノコ
https://www.monotaro.com/k/store/金ノコ/

This title covers my other entry "金切りのこぎり" as well, abbreviating as 金ノコ
ダイソーの金切りのこぎり（金ノコ）の切れ具合【１００円ショップ】
https://www.youtube.com/watch?v=oK7z0gDp_mo

万能タイプの金ノコです
https://zigsow.jp/item/290972/review/271990

I've edited a few other "hacksaw" entries today. I pose this problem to you (which appears in the others as well)
金鋸	3350	25.7%
金ノコ	5900	45.3%
金のこぎり	175	1.3%
金ノコギリ	334	2.6%

The Japanese dictionaries give 金のこぎり as the reading for the kanji.  I believe this is correct. In other words, 金鋸 should not be read 金ノコ.  I think of this as more of a colloquial (if popular) abbreviation.  

In that case, we should have a second entry with the 金ノコ reading, maybe as [abbr].  

Or, we consider this to be just-another-reading of the same kanji(鋸 is read ノコ in for some saw types). My gut feeling is that two entries (and maybe an xref) is cleaner. But I honestly don't know.

@@ -5,0 +6,6 @@
+</k_ele>
+<k_ele>
+<keb>金ノコギリ</keb>
+</k_ele>
+<k_ele>
+<keb>金のこぎり</keb>