W-20 / 20a / 20b / B75 / B92 Aluminum Alloy Copper Stainless Steel Galvanized Wrench Hardness Webster Tester NEW




Applicable materials: W20 series is suitable for aluminum alloy files
Hardness range: 25~110HRE 58~131HV
Working size: 0.6~13mm inner diameter>6~inner diameter>10
Range: 0~20HW
Indication error: 0.5HW (5~17HW)
Repeatability error: 0.5HW (5~17HW)
Weight: 0.5KG