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OSG Carbide Spotting & Chamfering Drill - Micro Grain - Uncoated - 142° - 8mm
| Drill Diameter | 8.00 |
| Flute Length | 23 |
| Overall Length | 60 |
| Shank Diameter | 8 |
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Description
The OSG Carbide Spotting & Chamfering Drill is a precision tool designed for accurate chamfering and spotting tasks. Made from premium micro-grain carbide and left uncoated, it features a 142° chamfer angle to deliver clean, consistent edge detailing across materials.
With an 8 mm diameter, this drill is ideal for preparing holes, guiding fasteners, and finishing edges on metals, plastics, and composites, delivering reliable results in demanding workshop environments.
- 142° Chamfer Angle: Provides an obtuse chamfer that yields smooth ledges and accurate edge preparation for a reliable fit in assemblies.
- Micro-Grain Carbide Construction: Delivers exceptional durability and long tool life, maintaining a sharp cutting edge through repeated chamfering tasks on tough materials.
- Uncoated Design: Offers consistent performance across a broad material range without coating interactions, simplifying setup and ensuring predictable results in standard shop conditions.
This combination means faster, more consistent chamfers with fewer reworks, improved hole alignment, and longer tool life. The OSG drill helps you streamline setup, reduce downtime, and achieve high-quality finishes on a variety of materials—from metals to composites—while the 8 mm diameter ensures compatibility with common hole sizes and fastener clearances.
Part Numbers
- Protool Part Number
- OSG-21420800
- Brand
- OSG
- 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.


