Resin bonded grinding discs compare testing - Blueshark vs NORTON
Size: Blueshark - 125x6x22.23mm Norton - 125x6.4x22.23mm
Grinding time : 5 minutes by the same operator with same pressures.
Work piece : No. 45# Steel
Power tools: Dewalt 125mm angle grinder / 1000W
The main testing data as below :
Work-piece weight consume: 1388-1285=103g
Disc weight consume: 183.8-163.5=20.3g
G.ratio = 103/20.3=5.07
Work-piece weight consume: 1285-1203=82g
Disc weight consume: 181.6-175.8=5.8g
G.ratio = 82/5.8=14.13
Blueshark with higher G.Ratio but NORTON with higher grinding speed and more comfortable hand-feeling. The testing exactly proved : “We can't say which discs is BEST , just say MOST SUITABLE !"