Products / Diamond & CBN Tools / CBN Grinding Wheels
CBN INTERNAL GRINDING TOOLS
Vitrified-Bond CBN Internal Grinding Mounted Points
Compact vitrified-bond CBN mounted points with a carbide shank for precision grinding of small bores, valve-seat profiles and hardened ferrous components. A D4 reference size is available; final geometry and grinding specification are confirmed to order.
D4 listed reference · Carbide shank · Custom profile review
Product Overview
These cylindrical CBN mounted grinding points are intended for small internal features where a compact grinding head and rigid shank are required. The verified product data identifies vitrified bond, a carbide shank, D4 reference size, and use for micro-hole, internal and valve-seat grinding. Head length, shank diameter, overall length, grit, concentration, bond grade and operating limits are confirmed from the application before production.
Key Product Features
- Vitrified-bond CBN grinding head
- Compact cylindrical mounted-point form
- Carbide shank in the available specification
- D4 size reference in the offer title
- For micro-bore, internal and valve-seat grinding
- Custom dimensions and profiles subject to confirmation
Technical Data
Only verified product information is shown below. Unlisted dimensions and operating parameters are confirmed before quotation.
| Item | Specification / Confirmation Basis |
|---|---|
| Abrasive | CBN |
| Bond | Vitrified / ceramic bond |
| Product form | Cylindrical internal grinding mounted point |
| Listed size reference | D4 |
| Shank | Carbide shank (available specification) |
| Head length, shank diameter and overall length | To be confirmed |
| Grit, concentration, bond grade and maximum speed | To be confirmed for the application |
Typical Applications
01 Small internal bores
02 Valve-seat tapered surfaces
03 Micro-hole internal grinding
04 Bearing steel and other hardened ferrous components
Information Needed for Quotation
- Grinding-head diameter D and length L
- Required cylindrical, tapered or profiled geometry
- Shank diameter d and overall length
- Workpiece material and hardness
- Bore or valve-seat dimensions and tolerance
- Machine, speed and coolant condition
- Required finish, stock removal and quantity
Related Products
Vitrified-Bond CBN Internal & Groove Grinding Wheels
A larger wheel-form option for internal bore, groove and application-specific internal grinding.
Send Your Internal Grinding Requirements
Send the head dimensions, profile, shank details, workpiece material and machine conditions. We will review the specification before confirming a quotation.


