Product Overview
The QCKB series is a range of neutral carbide grooving inserts available in 2 mm to 5 mm cut widths. The pressed geometry provides a sharp, self-centering cutting action for external grooving, shoulder turning and plunge cutting on CNC lathes. A polished rake surface and tough carbide substrate keep chips curling and breaking cleanly, which protects the groove walls and gives a predictable surface finish. Each insert is double-ended, effectively doubling the number of cutting edges you get per piece.
Specifications
| Grooving | Dimension(mm) | ||||||
|---|---|---|---|---|---|---|---|
![]() |
Model Number | INSL | CW | S | RE | CVD | PVD |
| QCKB2002 | 16 | 2 | 3.55 | 0.2 | Stainless: JP7125 JP7225 |
||
| QCKB3004 | 21 | 3 | 4.86 | 0.4 | |||
| QCKB4004 | 21 | 4 | 4.86 | 0.4 | |||
| QCKB5008 | 26 | 5 | 5.8 | 0.8 | |||
Applications
- External grooving and shoulder turning on CNC lathes
- Snap-ring and sealing grooves
- Plunge cutting and narrow-slot turning
- General grooving in steel and stainless steel
Features
- Tough carbide substrate balances wear resistance and edge strength
- Advanced CVD / PVD coating with hard, smooth surface
- Precision-ground periphery for accurate, repeatable seating
- Designed chipbreaker for clean chip control
- OEM marking, coating and packaging on request
Ordering & Support
Minimum order quantity is 10 pieces, and standard sizes ship in 5–8 working days. We can supply inserts with your own laser marking, selected coating and neutral packaging, and we are glad to send samples for cutting trials on your material before you commit to a batch. Send us your workpiece material, machine and cutting parameters and our engineers will recommend the most suitable grade and geometry.
Want a price for QCKB? MOQ 10 pcs · FOB quote within 24 hours · no online payment required.
Request a Quote — QCKB
Tell us the quantity and destination port in the Details box. We reply within 24 hours with FOB price, MOQ and lead time. No online payment — this is a quote request, not an order.
Prefer email? merlinlee629@gmail.com — or use the form above and we will get back to you directly.
| Model | QCKB |
|---|---|
| Workpiece Material | Steel, Stainless |
| Cutting Width | 2 – 5 mm (per size code) |
| Coating | PVD / CVD |






Reviews
There are no reviews yet.