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Omega Products BT40 Milling Cutter Arbor - MCA12 - 25,000 RPM - G2.5 - 100mm Gauge Length

SKU:OM30930

The Omega BT40 Milling Cutter Arbor MCA12 is a precision mounting shaft designed to securely hold BT40 milling cutters on compatible spindles. It’s built for professional shops and demanding jobs... Read more ↓
TaperBT40
d12.5
Nose Diameter (D1)21
D233
View all specifications ↓
£101.93
Prices shown ex. VAT
In Stock
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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 Omega BT40 Milling Cutter Arbor MCA12 is a precision mounting shaft designed to securely hold BT40 milling cutters on compatible spindles. It’s built for professional shops and demanding jobs, delivering reliable performance with high-speed capability and tight rotational accuracy.

With a maximum speed rating of 25,000 RPM and a G2.5 precision rating, this arbor provides stable rotation and minimal runout for consistent, accurate cuts. The 100 mm gauge length enhances cutter engagement, while its construction from high-quality materials ensures durability in busy machining environments and compatibility with a wide range of BT40 cutters for versatile use.

  • 25,000 RPM maximum with G2.5 precision: Delivers stable rotation and minimal runout, enabling accurate cuts even at high spindle speeds.
  • 100 mm gauge length for stable engagement: Offers solid cutter contact, reduces chatter, and supports consistent results across demanding milling tasks.
  • Durable construction with broad BT40 compatibility: Built from high-quality materials to withstand daily use and fit a wide range of BT40 cutters for versatile, quick tool changes.

This arbor helps streamline your workflow by delivering reliable tool retention, precise cutting performance, and easy setup. Its combination of high-speed capability, rigidity, and broad compatibility supports faster job completion, better surface finishes, and longer tool life in everyday milling operations.

Part Numbers

Protool Part Number
OM30930
Brand
Omega
No downloads are attached to this product yet.
Need cutting data? Call 01732 887334 or email sales@protool-ltd.co.uk.
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: Omega Products BT40 Milling Cutter Arbors - 25,000 RPM - G2.5

View full collection →

You are viewing OM30930. Click any other SKU to view its full details.

Product SKUdNose Diameter (D1)D2Thread (G)Reach (L)PriceStock Order
OM30916 6.51013M625£71.81 In Stock
OM30917 6.51020M650£83.40 In Stock
OM30918 6.51023M675£90.34 Next Day
OM30919 8.51315M825£71.81 Next Day
OM30920 8.51323M850£83.40 In Stock
OM30921 8.51323M875£90.34 In Stock
OM30922 8.51325M8100£101.93 In Stock
OM30923 10.51820M1025£71.81 In Stock
OM30924 10.51823M1050£83.40 In Stock
OM30925 10.51828M1075£90.34 In Stock
OM30926 10.51832M10100£101.93 In Stock
OM30927 12.52124M1225£71.81 In Stock
OM30928 12.52124M1250£83.40 In Stock
OM30929 12.52131M1275£90.34 In Stock
OM30930 Viewing12.52133M12100£101.93 In Stock
OM30931 12.52136M12125£115.83 In Stock
OM30932 172929M1625£71.81 In Stock
OM30933 172934M1650£83.40 In Stock
OM30934 172934M1675£90.34 In Stock
OM30935 172936M16100£101.93 In Stock
OM30936 172940M16125£115.83 In Stock
OM30937 172942.5M16150£127.41 Next Day

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