Resin Bond Diamond Grinding Wheel 12A2, Dish Shape for Internal & Precision Tool Grinding

Factory Direct 12A2 Resin Diamond Wheel for Carbide, Ceramic & Hard Alloy Internal Hole Grinding

Product Overview

The 12A2 resin bond diamond wheel features a dish-shaped (concave) profile, designed specifically for internal hole (ID) grinding and precision tool sharpening. Its angled grinding face provides optimal access to bores, flutes, and complex geometries. The resin bond ensures cool cutting, minimal heat, and high surface finish, making it ideal for both roughing and finishing hard materials.

Key Specifications

Parameter

Details

Wheel Shape

12A2 (Dish/Internal Grinding)

Bond Type

Resin Bond

Abrasive Type

Synthetic Diamond (SDC)

Standard Sizes (D×H×T)

80×10×16, 100×13×20, 125×13×32, 150×18×32

Grit Size

#180 – #800

Concentration

100% / 125%

Max Operating Speed

25 m/s (≤3500 RPM)

Precision Tolerance

Runout ≤0.01mm, Profile Accuracy ≤0.02mm

Workpiece Material

Tungsten carbide, ceramic, optical glass, hardened steel

Suitable Application

Internal hole grinding, tool flute grinding, saw blade sharpening

Customization

Size, grit, concentration, angle

Lead Time

7-15 Days

Features & Advantages

✅ Dish-shaped 12A2 design: Perfect for internal holes, flutes, and edge grinding

✅ Resin bond: sharp cut, low heat, no burn, excellent surface finish

✅ High diamond concentration for long life and stable performance

✅ Rigid aluminum core, low vibration, consistent precision

✅ Excellent self-sharpening, less dressing, high efficiency

✅ Factory direct, OEM/ODM available

Applications & Workpiece Materials

  • Internal hole grinding of carbide bushings, dies, and mold components

  • Flute/gash grinding of carbide drills, end mills, and reamers

  • Sharpening of carbide-tipped saw blades and circular cutters

  • Precision grinding of ceramic, optical glass, and quartz components

  • Suitable for CNC grinders, tool grinders, thread grinders, and universal grinders

If you need a custom solution for special materials or applications, please use the form below to tell us your requirements.

80mm /100mm / 125mm / 150mm / Custom

#180 (Rough) / #240 / #320 / #400 / #800 (Fine) / Custom

10mm / 16mm / 20mm / 32mm / Custom

20° / 30° / 45° / Custom

Request a Custom Diamond Wheel Quote

Tell us your grinding requirements below, and our engineering team will send you a tailored quotation within 24 hours.