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—Made of high-quality carbide material to ensure high hardness and wear resistance
Made of spring steel with a hardened surface for use with MGMN grooving inserts
Increase Efficiency Save Time
MA：M class double-sided chip breaker
The unique drill point angle ensures easy chip removal and more stable centering
BB Micro Drill Bits – Long Flute | OAL 50–75mm | Shank Ø4mm | Ø1.0–2.95mm | Carbide Hole Diameter:1.6xD4x16x50 —Made of high-quality carbide materialMicro Diameter Extended Flute Length Built for Precision Deep Drilling The BB Micro Long Flute Drill Bit features an extended flute length up to 30mm on a compact 4mm shank, with an overall length (OAL) up to 75mm. Designed for micro diameter drilling (1. 02. 95mm), it delivers exceptional reach and precision in deep, narrow holes where standard short flute drills cannot. Full Specification Range Flute Diameter: 1. 0 1. 1 1. 2 1. 3 1. 4 1. 5 2. 0 2. 5