BOHRCRAFT Drill Bits – 1149 HSS-E Cobalt 5% Drill Bit Set, 3 Cutting Edges (4 / 5 / 6 / 8 / 10mm)
The BOHRCRAFT 1149 Drill Bit Set includes a selection of premium HSS-E cobalt (5% cobalt alloyed high-speed steel) drill bits with 3 cutting edges for smoother, faster, and more precise drilling. Designed for stainless steels (INOX), alloyed steels, cast steel, and other difficult-to-machine materials, these bits deliver outstanding heat resistance, wear resistance, and durability.
The 3-flute geometry ensures improved chip evacuation, reduced cutting forces, and cleaner hole quality compared to conventional 2-flute bits. This set covers the most commonly used sizes, making it versatile for workshops, fabrication, and professional machining.
Specifications:
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Brand/Series: BOHRCRAFT 1149
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Type: Twist drill bit set
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Material: HSS-E cobalt (5% cobalt) – high durability and heat resistance
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Cutting Geometry: 3 cutting edges (3-flute design)
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Sizes Included: 4mm, 5mm, 6mm, 8mm, 10mm
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Applications: Alloyed/unalloyed steels, stainless steels (INOX), hardened steels, and other high-strength metals
Features & Applications:
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Set of 5 bits covering the most common diameters for workshop and professional use
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3 cutting edges provide smoother drilling, reduced vibration, and extended tool life
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Cobalt alloy steel withstands high heat, ideal for stainless steel and alloys
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Delivers clean, accurate holes with excellent chip evacuation
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Suitable for CNC machining, industrial workshops, construction, and fabrication
