عجلة تجليخ Norton J12BTM رمادية 3600 دورة في الدقيقة حبيبات A60 مقاس 4 × 3/8 × 1/4 بوصة

Had to swap out the old wheel mid-project and this 4-inch one with the 1/4-inch shank seated perfectly in my grinder. The 3600RPM rating is spot-on for what I need, and the A60 grit chews through welds without bogging down. Used it for about an hour straight and it held its edge nicely.

The grey wheel's A60 grit has been tearing through my workpieces with zero loading, and it's held its shape nicely across a full afternoon of use. Spins smooth at 3600 RPM, no vibration wobble that I can feel.

The 1/4-inch shank fits my drill chuck perfectly, and the grey wheel cuts through mild steel without loading up. At 3600 RPM it’s smooth enough for a few minutes of continuous work, though I keep the pressure light.