The GFJ74 series NC Mill Hardened Steel carbide milling cutters feature a 6 flute design for exceptional surface finish in profiling operations and a 45° helix for improved chip evacuation and a smoother finish. NC Mill Hardened Steel cuts through alloy steel, tool steel & hardened steel <60HRC at speed. The high quality nanograin carbide substrate, combined with a unique Z-coating, equips the NC Mill Hardened Steel to effectively tackle high hardness & high temperature machining at speed. They are supplied with a plain shank, most suitable for being clamped in an ER collet chuck.
Suitable for trochoidal milling.
Superior surface finish on profiling applications.
Cut through alloy steel, tool steel & hardened steel <60HRC at speed.
Designed specifically for machining high-hardened materials.
Suitable for dry, high-speed cutting (dry cutting can increase tool life up to 40%).
High quality nanograin carbide with unique Z-coating for high hardness & high temperature machining.
Consistently delivers an exceptional workpiece finish and boasts high wear resistance.
Premium quality micrograin carbide substrate for improved tool life and reliable performance in CNC machining.
Manufactured by global market leader of solid milling tools, YG-1.
We are open Monday to Friday and able to dispatch orders between 8am and 6pm (up to 5.30 pm on Fridays).
What delivery services do we offer?
To mainland UK we offer FREE UK next day delivery on all orders above £59 ex vat*. For orders under £59 ex vat we offer the following:
1st class post - £2.49
DPD Standard Next Day Delivery - £6.50
DPD Next Day Pre-12pm - £9.50 or (£5.00 on orders over £59*)
DPD Next Day Pre-10.30am - £17.00
Fluid Orders - FREE UK next day delivery on all orders above £79 ex vat*. For orders under £79 - £8
We also offer Saturday delivery for those that require it. If you order before 5.30 pm on a Friday we offer a range of options including all day Saturday, pre12pm and pre10.30am. Please see our delivery page for more information.
*T’s & C’s and exclusions apply. Please see our delivery page for more information on all our services including those outside of mainland UK (Republic of Ireland, Northern Ireland, Scottish Highlands, Channel Islands etc).
How do I return an order/item?
Our returns policy is easier than ever. We understand that if an item isn’t correct, then it needs to be returned. If you are wanting to return anything supplied by Cutwel please see our returns page for full instructions.
https://www.cutwel.co.uk/12mm-6-flute-nc-mill-hardened-steel-milling-cutter-z-coated-carbide-end-mill-square-end-superior-finishing-up-to-60hrc-standard-length-plain-shank-12x12x26x75-gfj74-yg-1-gfj74140?___store=default33404912mm 6 Flute NC Mill Hardened Steel Milling Cutter, Z-Coated Carbide End Mill, Square End (Superior Finishing), up to 60HRC, Standard Length, Plain Shank, 12x12x26x75 - GFJ74 (YG-1)https://www.cutwel.co.uk/media/catalog/product/G/F/GFJ74-nc-hardened-steel-1_1_46.png55.8755.87GBPInStock/Milling Tools/Milling Cutters/Milling Tools/Milling Cutters/General Purpose Milling Cutters/General Purpose Coated Carbide Milling Cutters/NC Mill X-Coated Carbide Milling Cutters/NC Mills Hardened Steel/Milling Tools/Milling Cutters/General Purpose Milling Cutters/General Purpose Coated Carbide Milling Cutters/NC Mill X-Coated Carbide Milling Cutters/NC Mills Hardened Steel/6 Flute (Finisher) NC Mill Hardened Steel/Milling Tools/Milling Cutters/General Purpose Milling Cutters/General Purpose Coated Carbide Milling Cutters/NC Mill X-Coated Carbide Milling Cutters/NC Mills Hardened Steel/View All - NC Mill Hardened Steel/Landing Pages/Shop By/Shop By Material/Milling Cutters for Hardened Steel 55-70 HRc/Promotions/Best of Cutwel 2025/Milling Tools - Best of Cutwel/NC Mill Hardened Steel951871618731188273831197111294959612257122631871620983116382853451952819699The GFJ74 series NC Mill Hardened Steel carbide milling cutters feature a 6 flute design for exceptional surface finish in profiling operations and a 45° helix for improved chip evacuation and a smoother finish. NC Mill Hardened Steel cuts through alloy steel, tool steel & hardened steel <60HRC at speed. The high quality nanograin carbide substrate, combined with a unique Z-coating, equips the NC Mill Hardened Steel to effectively tackle high hardness & high temperature machining at speed. They are supplied with a plain shank, most suitable for being clamped in an ER collet chuck. <ul>
<li>Suitable for trochoidal milling.</li>
<li>Superior surface finish on profiling applications.</li>
<li>Cut through alloy steel, tool steel & hardened steel <60HRC at speed.</li>
<li>Designed specifically for machining high-hardened materials.</li>
<li>Suitable for dry, high-speed cutting (dry cutting can increase tool life up to 40%).</li>
<li>High quality nanograin carbide with unique Z-coating for high hardness & high temperature machining.</li>
<li>Consistently delivers an exceptional workpiece finish and boasts high wear resistance.</li>
<li>Premium quality micrograin carbide substrate for improved tool life and reliable performance in CNC machining.</li>
<li>Manufactured by global market leader of solid milling tools, YG-1.</li>
</ul>GBP00https://www.cutwel.co.uk/media/catalog/product/G/F/GFJ74-nc-mill-hardened-steel-2_1_46.pngadd-to-cartYes12752612CarbideSteel, Hardened Steel, Cast IronPlain6Coated (PVD/CVD)SquareStandardStandard4Z-CoatedNanograin Carbide45°YG-1MillingMilling CuttersNC Mills Milling Cutters£67.04simple