Premium Performance | Buy Direct from Manufacturer – Not a Dropshipper
Upgrade your machining performance with this high-quality 20MM Indexable U Drill Package, designed for precision, durability, and superior metal removal rates.
✔️ 1 x 20MM U Drill Body
Thru coolant design for better chip evacuation & tool life
80MM flute length – ideal for deeper drilling applications
25MM shank – fits all standard tool holders with 32mm capacity
✔️ 20 x 100% ORIGINAL KORLOY Inserts
Model: WCMT040204-C21
Grade: PC3500
3 cutting edges per insert = more value per edge
Perfect for drilling:
4140 Alloy Steel
1045 Carbon Steel
Mild Steel (MS)
Stainless Steel (SS)
The PC3500 grade is a premium multilayer coated carbide developed for high wear resistance and thermal stability, making it ideal for demanding drilling operations.
Advantages over unbranded inserts:
✔️ Consistent metallurgy & coating quality
✔️ Longer tool life – fewer insert changes
✔️ Better surface finish
✔️ Higher feed rates without premature failure
✔️ Reliable performance in tough materials
👉 Unlike cheap, unbranded inserts flooding the market, KORLOY inserts are engineered for precision and consistency, not just low cost.
Many sellers offer “similar-looking” inserts at low prices—but:
❌ Poor coating quality
❌ Inconsistent dimensions
❌ Edge chipping & early failure
❌ No technical support or tooling knowledge
We are a manufacturer & tooling specialist – not a dropshipper.
You get genuine products + real expertise + after-sales support.
✔️ Direct from tooling experts
✔️ Proven products used in real machining environments
✔️ Reliable stock – no surprises
✔️ Technical guidance available
Do visit our store to have a look on other tools we have which you might need for your shop.
Thank you and have a good day.