China 5/8" 5/16" 3/16" Solid Carbide Drill Bit Set For Hardened Steel 2 Flutes

5/8" 5/16" 3/16" Solid Carbide Drill Bit Set For Hardened Steel 2 Flutes

Product Name: Carbide Drill Bit For Hardened Steel
Coating: TiSiN
Material: Carbide
China 3/4" 3/8" 5/32" 7/32" Solid Carbide Drill Bits For Hardened Steel Cast Iron 2mm 4mm 6mm

3/4" 3/8" 5/32" 7/32" Solid Carbide Drill Bits For Hardened Steel Cast Iron 2mm 4mm 6mm

Product Name: HRC55 Carbide Drill Bit
Coating: AlTiSiN
Material: Carbide
China .635" .0625" 1/8" 1/4" 1/2" Solid Carbide Twist Drill Bit Set 1/16"  1/8" 6mm 2mm

.635" .0625" 1/8" 1/4" 1/2" Solid Carbide Twist Drill Bit Set 1/16" 1/8" 6mm 2mm

Coating: Customzied
Type: Carbide Twist Drill Bit
Material: Carbide
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