TLILY 240 Pieces HSS Titanium Drill Bit Set for Metal, Steel, Wood, Plastic, Copper, 1mm to 3.5mm

HSS TITANIUM COATING: Classic HSS construction with titanium coating for capacity and durability. The cutting edge is hardened and honed for sharpness, chatter-free with staggered cutting teeth ensures precise countersinking and smooth, clean hole. It can be used multiple times without deformation. TWIST DESIGN and PERFORMANCE: PRECISE 135° SPLIT POINT, gold oxide finish and round straight shanks. Prevent walking, clear chips and particles faster. Produced by fully precision ground that ensures smooth chip movement. your perfect choice for DIY projects and household maintenance and repair. FLUTE SHAPE: 2 flute shape helps clear chips and debris from the drill bit, reducing friction and heat for a smoother and cooler drilling process. SIZE INCLUDED: 120pcs construction wood length drill bit with plastic storage case, including sizes: from 1mm to 3.5mm (20x1.0mm, 20x1.5mm, 20x2.0mm, 20x2.5mm, 20x3.0mm, 20x3.5mm, total 120pcs), can perfectly meet your different needs. Name: Twist Drill