HSS Twist Double End Drill Bits Titanium Coating Straight Shank 4.2mm Dia 5 pcs - Dia.4.2mm*L.50 5pcs
$8.49
4.2mm Shank Diameter; 9.7mmDrill Bit Length Twist Double End Drill Bits made of High Speed Steel, high hardness, good wear resistance and durability This HSS Drill Bits surface Titanium coated, which increase the hardness of the drill bit and reduces…