7 Pcs Four-Flute Sawtooth Eccentric Drill Bit, Eccentric Twist Drill Bit Heavy-Duty FourEdged Serrated Carbide Tip Glass Masonry Drill Bit Set for Stone Concrete Wood Brick(3/4/5/6/8/10/12mm)

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En stock

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0.23 kg

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Amazon

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USA

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Specifications:Name: Four-edged serrated eccentric drill bit setMaterial: CarbideGross weight: 157.50 gPackaging size: 15.2*7*1 cm Packing list:3-4-5-6-8-10-12 Four-edged serrated eccentric drill bit set

$17,55

49% OFF

$9,00

$17,55

49% OFF

$9,00

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7-Piece Professional Eccentric Drill Bit Set: This comprehensive kit includes seven industrial-grade carbide bits (3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm) with universal hex shanks. The precisely calibrated sizing ensures perfect holes in various materials. Advanced Carbide Construction: Engineered with carbide cross-head tips, these bits deliver exceptional hardness and heat resistance. The serrated four-edge design maintains sharpness through extended use, while the rust-resistant coating prevents corrosion in humid conditions. Multi-Material Performance: Specifically designed to tackle concrete, glass, ceramic tile, and metal with equal efficiency. The eccentric cutting geometry reduces friction compared to conventional bits, while the cross-head tip prevents wandering on slick surfaces like porcelain or marble. Precision Engineering Features: Incorporates three innovative technologies - dry eccentric positioning for accurate starts, four-flute chip evacuation for cleaner holes, and low-resistance helical grooves that minimize heat buildup. These features combine to deliver professional-grade results in both rotary and hammer drill modes. Professional-Grade Application System: Includes usage protocols - water cooling for glass/ceramics (prevents cracking), 45° angle starts for tiles (avoids chipping), and variable speed recommendations for different materials.