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Widin Carbide Drill Single Margin Internal Coolant 8XD TiAlN Coated - 7.8mm

Widin Carbide Drill Single Margin Internal Coolant 8XD TiAlN Coated - 7.8mm

SKU:PI508A078

The Widin Carbide Drill with Internal Coolant is built for precise, deep-hole drilling in hard materials. Made from solid carbide and finished with a TiAlN coating, this 7.8 mm drill delivers dep... Read more ↓
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M
K
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Drill Diameter7.80
Flute Length76
Overall Length114
Shank Diameter8
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£74.91
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 Drill with Internal Coolant is built for precise, deep-hole drilling in hard materials. Made from solid carbide and finished with a TiAlN coating, this 7.8 mm drill delivers dependable performance, even at higher speeds.

Its 8xD length design and internal coolant channel enable efficient chip evacuation and sustained accuracy when drilling deep holes, with excellent stability thanks to the single margin design.

  • Internal Coolant Channel: Directs coolant to the cutting edge for efficient chip evacuation, reduces heat buildup, and helps maintain precision during long or deep-hole drilling.
  • Single Margin Design: Provides added stability and reduces deviation, resulting in cleaner hole geometry and less wandering in demanding applications.
  • TiAlN Coating on Solid Carbide: Enhances wear resistance and heat tolerance, enabling faster cutting speeds and longer tool life, even in tough materials.

Designed to improve consistency and speed in metalworking tasks, this drill supports reliable performance across manufacturing, maintenance, and prototyping projects. With its robust carbide core, protective TiAlN coating, and integrated coolant, you can tackle deep holes with confidence, reduce downtime, and achieve repeatable results from start to finish.

Part Numbers

Protool Part Number
PI508A078
Brand
Widin
Category
Drill
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 Solid Carbide Drills - 8xD TiAlN Coated - Single Margin Internal Coolant (PI508)

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You are viewing PI508A078. Click any other SKU to view its full details.

Product SKUDrill DiameterFlute LengthOverall LengthShank DiameterCoatedCoolantPriceStock Order
PI508A030 3.0034726CoatedYES£56.45 5 days
PI508A031 3.1034726CoatedYES£56.45 5 days
PI508A032 3.2034726CoatedYES£56.45 5 days
PI508A033 3.3034726CoatedYES£56.45 5 days
PI508A034 3.4034726CoatedYES£56.45 5 days
PI508A035 3.5034726CoatedYES£56.45 5 days
PI508A036 3.6034726CoatedYES£56.45 5 days
PI508A037 3.7034726CoatedYES£56.45 5 days
PI508A038 3.8043816CoatedYES£56.45 5 days
PI508A039 3.9043816CoatedYES£56.45 5 days
PI508A040 4.0043816CoatedYES£56.45 5 days
PI508A041 4.1043816CoatedYES£56.45 5 days
PI508A042 4.2043816CoatedYES£56.45 5 days
PI508A043 4.3043816CoatedYES£56.45 5 days
PI508A044 4.4043816CoatedYES£56.45 5 days
PI508A045 4.5043816CoatedYES£56.45 5 days
PI508A046 4.6043816CoatedYES£56.45 5 days
PI508A047 4.7043816CoatedYES£56.45 5 days
PI508A048 4.8057956CoatedYES£56.45 5 days
PI508A049 4.9057956CoatedYES£56.45 5 days
PI508A050 5.0057956CoatedYES£56.45 5 days
PI508A051 5.1057956CoatedYES£56.45 5 days
PI508A052 5.2057956CoatedYES£56.45 5 days
PI508A053 5.3057956CoatedYES£56.45 5 days
PI508A054 5.4057956CoatedYES£56.45 5 days
PI508A055 5.5057956CoatedYES£56.45 5 days
PI508A056 5.6057956CoatedYES£56.45 5 days
PI508A057 5.7057956CoatedYES£56.45 5 days
PI508A058 5.8057956CoatedYES£56.45 5 days
PI508A059 5.9057956CoatedYES£56.45 5 days
PI508A060 6.0057956CoatedYES£56.45 5 days
PI508A061 6.10761148CoatedYES£74.91 5 days
PI508A062 6.20761148CoatedYES£74.91 5 days
PI508A063 6.30761148CoatedYES£74.91 5 days
PI508A064 6.40761148CoatedYES£74.91 5 days
PI508A065 6.50761148CoatedYES£74.91 5 days
PI508A066 6.60761148CoatedYES£74.91 5 days
PI508A067 6.70761148CoatedYES£74.91 5 days
PI508A068 6.80761148CoatedYES£74.91 5 days
PI508A069 6.90761148CoatedYES£74.91 5 days
PI508A070 7.00761148CoatedYES£74.91 5 days
PI508A071 7.10761148CoatedYES£74.91 5 days
PI508A072 7.20761148CoatedYES£74.91 5 days
PI508A073 7.30761148CoatedYES£74.91 5 days
PI508A074 7.40761148CoatedYES£74.91 5 days
PI508A075 7.50761148CoatedYES£74.91 5 days
PI508A076 7.60761148CoatedYES£74.91 5 days
PI508A077 7.70761148CoatedYES£74.91 5 days
PI508A078 Viewing7.80761148CoatedYES£74.91 5 days
PI508A079 7.90761148CoatedYES£74.91 5 days
PI508A080 8.00761148CoatedYES£74.91 5 days
PI508A081 8.109514210CoatedYES£125.31 5 days
PI508A082 8.209514210CoatedYES£125.31 5 days
PI508A083 8.309514210CoatedYES£125.31 5 days
PI508A084 8.409514210CoatedYES£125.31 5 days
PI508A085 8.509514210CoatedYES£125.31 5 days
PI508A086 8.609514210CoatedYES£125.31 5 days
PI508A087 8.709514210CoatedYES£125.31 5 days
PI508A088 8.809514210CoatedYES£125.31 5 days
PI508A089 8.909514210CoatedYES£125.31 5 days
PI508A090 9.009514210CoatedYES£125.31 5 days
PI508A091 9.109514210CoatedYES£125.31 5 days
PI508A092 9.209514210CoatedYES£125.31 5 days
PI508A093 9.309514210CoatedYES£125.31 5 days
PI508A094 9.409514210CoatedYES£125.31 5 days
PI508A095 9.509514210CoatedYES£125.31 5 days
PI508A096 9.609514210CoatedYES£125.31 5 days
PI508A097 9.709514210CoatedYES£125.31 5 days
PI508A098 9.809514210CoatedYES£125.31 5 days
PI508A099 9.909514210CoatedYES£125.31 5 days
PI508A100 10.009514210CoatedYES£125.31 5 days
PI508A101 10.1011416212CoatedYES£202.21 5 days
PI508A102 10.2011416212CoatedYES£202.21 5 days
PI508A103 10.3011416212CoatedYES£202.21 5 days
PI508A104 10.4011416212CoatedYES£202.21 5 days
PI508A105 10.5011416212CoatedYES£202.21 5 days
PI508A106 10.6011416212CoatedYES£202.21 5 days
PI508A107 10.7011416212CoatedYES£202.21 5 days
PI508A108 10.8011416212CoatedYES£202.21 5 days
PI508A109 10.9011416212CoatedYES£202.21 5 days
PI508A110 11.0011416212CoatedYES£202.21 5 days
PI508A111 11.1011416212CoatedYES£202.21 5 days
PI508A112 11.2011416212CoatedYES£202.21 5 days
PI508A113 11.3011416212CoatedYES£202.21 5 days
PI508A114 11.4011416212CoatedYES£202.21 5 days
PI508A115 11.5011416212CoatedYES£202.21 5 days
PI508A116 11.6011416212CoatedYES£202.21 5 days
PI508A117 11.7011416212CoatedYES£202.21 5 days
PI508A118 11.8011416212CoatedYES£202.21 5 days
PI508A119 11.9011416212CoatedYES£202.21 5 days
PI508A120 12.0011416212CoatedYES£202.21 5 days
PI508A121 12.1013317814CoatedYES£307.40 5 days
PI508A122 12.2013317814CoatedYES£307.40 5 days
PI508A123 12.3013317814CoatedYES£307.40 5 days
PI508A124 12.4013317814CoatedYES£307.40 5 days
PI508A125 12.5013317814CoatedYES£307.40 5 days
PI508A126 12.6013317814CoatedYES£307.40 5 days
PI508A127 12.7013317814CoatedYES£307.40 5 days
PI508A128 12.8013317814CoatedYES£307.40 5 days
PI508A129 12.9013317814CoatedYES£307.40 5 days
PI508A130 13.0013317814CoatedYES£307.40 5 days
PI508A131 13.1013317814CoatedYES£307.40 5 days
PI508A132 13.2013317814CoatedYES£307.40 5 days
PI508A133 13.3013317814CoatedYES£307.40 5 days
PI508A134 13.4013317814CoatedYES£307.40 5 days
PI508A135 13.5013317814CoatedYES£307.40 5 days
PI508A136 13.6013317814CoatedYES£307.40 5 days
PI508A137 13.7013317814CoatedYES£307.40 5 days
PI508A138 13.8013317814CoatedYES£307.40 5 days
PI508A139 13.9013317814CoatedYES£307.40 5 days
PI508A140 14.0013317814CoatedYES£307.40 5 days

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