HSS TITANIUM COATING: Classic HSS construction with titanium coating for capability and durability. The is hardened and honed for sharpness, chatter-free design with staggered cutting teeth the precise countersinking and hole smooth clean. It can be used multiple times without deformation. TWIST DESIGN & PERFORMANCE: PRECISE 135° SPLIT POINT, gold oxide finish and round straight shanks. Prevent walking, clear chips and particles faster. Produced by precision fully ground which ensures chips move smoothly. It is your choice for DIY projects and household maintenance and repair. FLUTES FORM: 2 flutes form helps clear chips and debris away from the bit, decreasing friction and heat for a faster, cooler drilling process. SIZE INCLUDED: 120pcs jobber length drill bit set with plastic storage case including sizes: from 1mm to 3.5mm (20x1.0mm, 20x1.5mm, 20x2.0mm, 20x2.5mm, 20x3.0mm, 20x3.5mm, total 120 pieces ), can meet your different needs ly. Name:Twist Drill Bit Angle Point: 135 Degree Flute Type: Two Flutes Form Shank Type: Straight Shank Color: Golden Material: HSS Size: (1.0mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm, 3.5mm) bits each 20 pcs Package Contents: 120 * Titanium Drill Bits Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.