1/4" square tip, DIN 3126 & ISO 1173 compliant for precise countersunk screw drilling. High‑performance alloy steel with zinc phosphate finish for durability & corrosion resistance. Suitable for all trades and industrial applications – from carpentry to metalworking. Each drill bit measures 0.8mm × 5.5mm × 50mm – perfect for 0.8mm countersunk screws. Available in a convenient 5‑piece plastic box or a 2‑piece blister for quick replacement.
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