Twist drill bits are made of HSS steel, anti-corrosion and high strength, durable in use. Straight Shank Design is suitable for electric drills and drilling machines. Twist drill size: 0.8 2pcs, 0.9 2pcs, 1 2pcs, 1.1 2pcs, 1.2 2pcs, 1.3 2pcs, 1.4 2pcs, 1.5 2 pcs.
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