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Ships within 48 hours · Estimated delivery Jul 26 - Jul 31
please do not continue to use it if there are [Collapse mouth/cracks] during use to prevent safety hazards and damage to the drilling material
Built for maximum durability and extended tool life
This product belongs to high-precision cutting tools
2 D4 16 50 4T 4 1
1 D4 20 50 4T 5 2R0
BB Micro Drill Bit Shank D=4mm BF2055 thread milling cutter please do not continue toBB Mirco Drill 1PCS The whole bit is made of Solid Carbide, which makes the bit more durable. But it also makes it easier to break, so it's forbidden to use electric hand drills and unstable machining environments. Application Steel, stainless steel, cast iron, die steel, circuit board,acrylic and so on. Diameter of shank : 3mm or 4mm Recommended Cutting Conditions *Reference parameters are used as the general standard and need to be adjusted
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