World-Class Precision Cutting Tools

Cut Smarter.
Last Longer.

OSG is one of the world's leading manufacturers of precision cutting tools — end mills, taps, and drills trusted by engineers across aerospace, automotive, and general engineering. Available now at Protool.

Shop OSG Tools →
1938
Founded
30+
Countries
40,000+
Products
UK
Stock & Fast Despatch
Genuine OSG — Authorised UK Distributor
Next-Day Despatch on Stocked Lines
Free Delivery on Orders Over £75
Expert Technical Support

Precision You Can Rely On

Founded in Japan in 1938, OSG Corporation has grown into one of the world's most respected manufacturers of precision cutting tools. With a presence in over 30 countries and a catalogue of more than 40,000 products, OSG serves engineers in aerospace, automotive, die & mould, energy and general engineering.

OSG's proprietary coating technologies — including EgiAs and Exocarb — extend tool life significantly, reduce cutting forces and improve surface finishes. As an authorised UK distributor, Protool stocks a wide range of OSG tools ready for next-day despatch.

Authorised UK Distributor Every OSG tool is 100% genuine, supplied direct from authorised stock with full manufacturer backing.
Advanced Coatings EgiAs and Exocarb coatings dramatically extend tool life and improve performance in hard materials.
ISO Certified Quality OSG's state-of-the-art manufacturing facilities are ISO certified — consistent quality on every tool.
Trusted Worldwide Used by engineers in aerospace, automotive and precision manufacturing across more than 30 countries.

The Right Tool, Ready When You Need It

End Mills & Milling Cutters

OSG end mills across a wide range of geometries and coatings — designed for high-speed and high-feed machining in steel, aluminium, stainless and hardened materials.

Threading Taps

OSG taps for machine threading in blind and through holes — covering metric, UNC, UNF and pipe thread forms with exceptional thread quality and tool life.

Drills & Hole Making

OSG drills delivering fast, accurate hole making with consistent performance from first hole to last — available in a wide range of diameters and coatings.

EgiAs Coating Technology

OSG's EgiAs coating provides outstanding lubricity and heat resistance — extending tool life dramatically when machining stainless steel, hardened materials and titanium.

Exocarb & WXS Series

The Exocarb and WXS series push performance boundaries — ultra-sharp edges and premium coatings for exceptional surface finish and reduced cutting forces.

UK Stock & Fast Despatch

We hold OSG stock ready to go. Order before the cut-off and we'll despatch same day — keeping your machines running and minimising downtime.

Ready to order OSG tools?

Browse the complete OSG range at Protool — or get in touch if you need help choosing the right tool for your application.

View All OSG Products →

OSG Precision Cutting Tools — End Mills, Taps & Drills from an Authorised UK Distributor

OSG Corporation was founded in Japan in 1938 and has grown into one of the world's largest and most respected manufacturers of precision cutting tools, with a presence in over 30 countries and a product catalogue exceeding 40,000 items. OSG tools are used by engineers in aerospace, automotive, die & mould, medical, electronics, energy and general engineering industries worldwide. Protool is an authorised UK distributor for OSG, stocking a broad range of OSG end mills, taps and drills for fast next-day despatch across the UK.

OSG end mills are available in solid carbide across a wide range of geometries — including square end, ball nose, corner radius, high-feed and roughing profiles — for milling steel, stainless steel, aluminium, titanium, hardened materials and non-ferrous alloys. The Exocarb WXS series is OSG's benchmark for hard milling, engineered specifically for hardened steels above 50 HRC including D2, A2, H13 and CPM tool steels, with a proprietary nano-layer WXS coating and geometry optimised for maximum rigidity and surface finish. The Exocarb ADO and ADF carbide drills combine OSG's advanced EgiAs coating with precision point geometry for outstanding performance in stainless steel, titanium and high-temperature alloys.

OSG taps cover the full range of machine threading applications — spiral point taps for through-hole threading, spiral flute taps for blind holes, forming taps for chip-free threading in ductile materials, and thread milling cutters for difficult materials and large diameters. OSG taps are available in HSS-E (cobalt), Powder Metal (PM) and solid carbide grades, with thread forms covering Metric (M and MF), UNC, UNF, UNEF, BSP, BSPT, NPT and other specialist profiles. OSG PM taps are particularly well regarded for their exceptional tool life in production tapping of steel, stainless steel and cast iron.

OSG's proprietary coating technologies are central to the brand's performance advantage. The EgiAs coating delivers extreme toughness combined with high wear and heat resistance, making it the ideal choice for drilling stainless steel, hardened materials and difficult alloys where conventional coatings fail prematurely. The WXS nano-layer coating was developed specifically for hard milling and provides unmatched performance in materials above 50 HRC. OSG's A-Brand DLC (diamond-like carbon) coating is used on end mills for aluminium and non-ferrous machining, providing near-zero friction and preventing built-up edge.

Protool stocks OSG end mills, OSG taps and OSG drills for same-day despatch to customers across the UK. All OSG tools supplied by Protool are 100% genuine products from authorised OSG stock — with full manufacturer backing and technical support. Whether you need a standard OSG carbide end mill for everyday milling, an Exocarb WXS ball nose for hard milling, or OSG PM spiral point taps for production threading, our team can advise on the right grade, geometry and coating for your application. Contact Protool for expert technical support and competitive pricing on the complete OSG range.