A coolant should always be used when drilling with TCT twist drill bits. Irwin suggest the use of a 3- 6% emulsion. This is a quality item for a very good price. PRODUCT DETAILS.
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50Pcs Set Our Drill Bits Sets Mixed, made from high-speed steel (HSS) and coated with gold, boast exceptional resistance and durability. Our Drill Bits Sets Mixed include five specifications: 1mm. 5mm, 2mm, 2.5mm, and 3mm, with 10 pieces of each size.
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Unique 3 Sided Shank: Compared with traditional drills, spiral step drills are nearly impossible to buckle. Robust High Speed Steel Structure: The spiral step drill bit with strong high speed steel structure is adopted to improve durability.
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Material:HSS. Easy to Use: Engineered for user convenience, these drill bits are straightforward to operate, allowing for quick setup and effortless drilling without requiring extensive experience.
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Shank Type: 1/2 Straight Shank. - All drills have a 12.7mm (1/2") shank. 1 HSS straight shank drill (optional). - Quantity: 1pcs. - Chip flute length: (mm) 2. - Steam tempered blue finish. - All sizes have a total length of 150mm.
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Easy to Use: Engineered for user convenience, these drill bits are straightforward to operate, allowing for quick setup and effortless drilling without requiring extensive experience. 1 Drill Bits. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
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Contains 4 specifications: 6mm, 8mm, 10mm, 12mm. Size:6mm, 8mm, 10mm, 12mm. Drill Bit specifications of each are marked and easy to use. 5pcs Drill Bit(6/6/8/10/12mm). The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
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