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Widin Carbide Square End Mill For Mold & Die - 4 Flute Variable - 18mm (16mm Shank)

SKU:UE504180S16

The Widin Carbide Square End Mill is a high‑performance cutting tool designed for precision mold and die work. It features an 18 mm cutting diameter with a 16 mm shank in a 4‑flute, variable‑inde... Read more ↓
P
K
Cutter Diameter18
Number of Flutes4
Flute Length45
Overall Length100
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£381.80
Prices shown ex. VAT
5 days estimated lead time — subject to availability
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Free delivery over £50 ex VAT
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14-day returns
30+ years expertise
Klarna
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

Description

The Widin Carbide Square End Mill is a high‑performance cutting tool designed for precision mold and die work. It features an 18 mm cutting diameter with a 16 mm shank in a 4‑flute, variable‑index design, delivering stable, accurate material removal across a wide range of cavity sizes and applications. It offers a broad cutting diameter range from 0.8 mm to 25.0 mm with a tight tolerance of +0/−0.03 mm, while the W coating enhances wear resistance and machining stability for longer tool life.

  • Broad cutting diameter range: Covers 0.8–25.0 mm to tackle multiple cavity sizes with a single tool, reducing tool changes and downtime in mold and die work.
  • Tight diameter tolerance: +0/−0.03 mm tolerance ensures repeatable, precise slots and profiles across production runs.
  • 4‑flute variable‑index design with W coating: Helix angles of 29° (first flute) and 31° (second flute) minimize chatter and vibration, while the W coating boosts wear resistance and tool life on mold, die, and lower‑to‑moderate hardness steels.
  • Material compatibility for demanding steels: Specifically suitable for mold and die machining below 55 HRc, including pre‑hardened steel, alloy steel, and carbon steel, delivering reliable performance in tough materials.

Designed to streamline production, this end mill helps you achieve cleaner finishes, tighter tolerances, and more consistent results with fewer reworks. Its robust construction and advanced coating provide confidence across repeated cuts and various steel types, making it a dependable choice for engineers, machinists, and shop floors focused on precision mold and die outcomes.

Part Numbers

Protool Part Number
UE504180S16
Brand
Widin
Category
End Mill
Delivery

Free UK mainland delivery on orders over £50 ex VAT. In-stock items ordered before 4:30pm are dispatched the same working day. Full delivery information.

Returns

14-day returns on unused stock items in original packaging. Special-order and bespoke tooling is non-returnable. Read our returns policy.

Technical Support

Over 30 years of machining experience behind the counter. Call 01732 887334, Mon–Thurs 8:30–17:30, Fri 8:30–16:30.

Trade Accounts

Credit accounts, contract pricing and scheduled call-off orders available for trade customers. Apply for an account.

What time are Protool open?

We are open Monday to Friday between 8:30am and 5pm.

Do you offer Free Next Day delivery?

Yes! We offer Free Next Day delivery via Royal Mail Tracked 24 on all orders over £50 ex VAT*. We also offer Free DPD Local Next Day delivery on all orders over £100 ex VAT*.

We also offer the following:

  • Royal Mail Tracked 24 — £5.90 (FREE on orders over £50 ex VAT*). Order before 4:30pm for next day delivery. No signature required.
  • DPD Local Next Day — £8.00 (FREE on orders over £100 ex VAT*). Standard next day delivery to UK mainland addresses.
  • Royal Mail Special Delivery — £12.50. Guaranteed delivery before 1pm the next working day.
  • DPD Saturday Delivery — £25.00. Must be ordered on Friday before 4pm. Pre-12pm delivery.

For delivery to Scottish Highlands & Islands, Northern Ireland, Republic of Ireland, or overseas locations, additional charges apply. Please see our delivery page for full details, or call us on 01732 887 334.

*T's & C's and exclusions apply. Please see our delivery page for more information on all our services.

Ask our technical team about this tool

Not sure if this is the right tool for your job? Ask us about speeds and feeds, material suitability, holders or alternatives — 30+ years of machining experience on the other end.

Prefer to talk? Call 01732 887334 — Mon–Thurs 8:30–17:30, Fri 8:30–16:30.

Full Range: Widin Carbide Square End Mill For Mold & Die - 4 Flute Variable (WME504)

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You are viewing UE504180S16. Click any other SKU to view its full details.

Product SKUCutter DiameterNumber of FlutesFlute LengthOverall LengthShank DiameterPriceStock Order
UE504009 0.941.8404£22.65 5 days
UE504008 0.841.6404£22.65 5 days
UE504010 142.5506£23.33 5 days
UE504015 1.544506£23.33 5 days
UE504012 1.243506£23.33 5 days
UE504020 246506£23.33 5 days
UE504025 2.547506£23.33 5 days
UE504030 348506£23.33 5 days
UE504035 3.5410506£23.33 5 days
UE504040 4410506£23.33 5 days
UE504045 4.5414506£23.33 5 days
UE504050 5415606£24.83 5 days
UE504055 5.5415606£24.83 5 days
UE504060 6415606£24.83 5 days
UE504065 6.5418608£41.73 5 days
UE504070 7420608£41.73 5 days
UE504075 7.5420608£41.73 5 days
UE504080 8420708£43.50 5 days
UE504085 8.54227010£60.23 5 days
UE504095 9.54247010£60.23 5 days
UE504090 94227010£60.23 5 days
UE504100 104257510£61.50 5 days
UE504105 10.54267512£88.85 5 days
UE504110 114307512£88.85 5 days
UE504120 124308012£89.20 5 days
UE504115 11.54308012£89.20 5 days
UE504130 1343510012£173.20 5 days
UE504140S14 1443510014£255.30 5 days
UE504140 1443510016£301.55 5 days
UE504140S12 1443510012£199.23 5 days
UE504150 1543810016£301.55 5 days
UE504180 1844510018£415.00 5 days
UE504160 1644010016£301.55 5 days
UE504170 1744210016£369.38 5 days
UE504180S16 Viewing1844510016£381.80 5 days
UE504190 1944510020£463.00 5 days
UE504200 2044510020£463.00 5 days
UE504210 2144510020£606.25 5 days
UE504220 2244510020£606.25 5 days
UE504230 2345012025£735.75 5 days
UE504240 2445012025£735.75 5 days
UE504250 2545012025£735.75 5 days

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