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Dormer Pramet A225 1/8 Inch x 5/16 Inch HSS BS 60 DEG CENTRE DRILL BS 328

Dormer Pramet A225 1/8 Inch x 5/16 Inch HSS BS 60 DEG CENTRE DRILL BS 328

SKU:DOR-A225BS4

The Dormer Pramet A225 centre drill is a precision HSS tool designed to start holes cleanly and accurately, making it ideal for creating centre holes in shafts that need secure holding during turn... Read more ↓
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M
K
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TypeShort Series
Drill Diameter3.18
Overall Length57.15
Shank Diameter7.94
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£5.88
Prices shown ex. VAT
2 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
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01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

Description

The Dormer Pramet A225 centre drill is a precision HSS tool designed to start holes cleanly and accurately, making it ideal for creating centre holes in shafts that need secure holding during turning or milling. With a 120° pilot and a 60° cone, it guides the drill smoothly into the workpiece for reliable starting accuracy. This BS 60° centre drill is suitable for both CNC and conventional machines, helping you achieve consistent alignment in production tasks.

Built from premium high-speed steel, this centre drill can be used on a wide range of materials, including steel, aluminium and stainless steel. The bright finish reduces workpiece material from sticking to the cutting edge and promotes easier chip clearance, while the double-ended design provides two drilling ends for greater productivity and economy.

  • Double-Ended Design: Two drilling ends extend tool life and reduce replacement frequency, boosting productivity and lowering operating costs.
  • Precise Centering: 120° pilot and 60° cone deliver accurate centre holes in shafts for secure holding and reliable alignment during subsequent machining.
  • Bright Finish for Smooth Cutting: Bright finish minimizes material sticking to the edge and aids chip flow, helping you finish holes cleanly and consistently.

With the A225 centre drill, you gain a dependable starting point for accurate, repeatable centre holes across a variety of materials, compatible with both CNC and manual equipment. The combination of premium HSS construction, dual ends, and a precise center geometry supports faster setups, fewer interruptions, and consistently aligned parts—delivering improved workflow and higher-quality results in everyday workshops and production environments.

Part Numbers

Protool Part Number
DOR-A225BS4
Brand
Dormer Pramet
Category
Drill
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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: Dormer Pramet A225 HSS BS 60 DEG CENTRE DRILLS BS 328

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You are viewing DOR-A225BS4. Click any other SKU to view its full details.

Product SKUDrill DiameterOverall LengthShank DiameterPriceStock Order
DOR-A225BS1 1.1938.13.18£3.30 2 days
DOR-A225BS2 1.5944.454.76£3.86 2 days
DOR-A225BS3 2.3850.86.35£4.65 2 days
DOR-A225BS4 Viewing3.1857.157.94£5.88 2 days
DOR-A225BS5 4.7663.511.11£10.21 2 days
DOR-A225BS5A 5.5669.8512.7£13.22 2 days
DOR-A225BS6 6.3576.215.88£22.33 2 days
DOR-A225BS7 7.9488.919.05£35.34 2 days

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