mechanical hand tool crowfoot wrench spanner
USD $10.80 - $10.80 /Piece
Min.Order:1 Piece
Hebei Tuokai Safety Tools Co., Ltd.
Hebei Tuokai Safety Tools Co.,Ltd
High Quality Non Sparking Hand Tool Crow Foot Open End Wrench
Product Description
1.Non sparking tools brass hammer
2.aluminum bronze material
3.die forged processing
4.own factory
5.ISO9001 certification
Composition:
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 |
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What is a "non-sparking" tool?
"Non-sparking", "spark reduced", "spark-resistant" or "spark-proof" tools are names given to tools made of metals such as brass, bronze, Monel metal (copper-nickel alloy), copper-aluminum alloys (aluminum bronze), or copper-beryllium alloys (beryllium bronze).
Commonly used hand tools are often manufactured of steel alloys. Preferred "non-sparking" metals have less tensile
strength than steels usually used to make tools.A lower tensile strength means the metal has less strength or resistance
to tearing apart when stretched under test conditions. It also means that these tools are softer, wear down more quickly
than ordinary steel tools, and have to be dressed more frequently.
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