Non sparking aluminum bronze allon 1/2'' Dr Socket Set-24pcs

 Sockets 10mm,11mm,12mm,13mm,14mm,15mm,16mm,17mm,18mm

19mm,20mm,21mm,22mm,23mm,24mm,27mm,30mm,32mm

Ratchet Wrench 245mm

Sliding T-Handle 250mm

Speed Handle 400mm

Driver Extension 125mm,250mm

Universal Joint 80mm

Beryllium copper:  GBEx ⅡC

Be: 1.8% - 2.3%

Ni: 0.2% - 0.5%

Others: < 0.5%

Cu: Rest

Hardness: 35-40 HRC (HB283-365)

Tensile Strength: 1117 N/mm2 ~ 1326 N/mm2

Aluminum bronze: GBEx ⅡB

Al: 10% - 12%

Ni: 4% - 6%

Fe+Mn: < 5.8%

Cu: Rest

Hardness: 20-30 HRC (HB229-291)

Tensile Strength: 782 N/mm2 ~ 989 N/mm2