25pcs 1-13mm HSS Twist Drill Bit Set High Speed Steel Metric Drill Bit Set

Description: 25pcs 1-13mm HSS Twist Drill Bits Set High Speed Steel Metric Drill Bits With Metal Case Specifications: Material: HSS (High Speed Steel) Colour: Gold; Black; White (It only has one color in a package, so please choose the color you want; if not, we would sent to you in random.) Set comes with Sizes: 1mm / 1.5mm / 2mm / 2.5mm / 3mm / 3.5mm / 4mm / 4.5mm / 5mm / 5.5mm 6mm / 6.5mm / 7mm / 7.5mm / 8mm / 8.5mm / 9mm / 9.5mm / 10mm / 10.5mm 11mm / 11.5mm / 12mm / 12.5 mm / 13mm Features: 1. 120 tip angle for self-centering and good precision. 2. Suitable for drilling various metals and wood. 3. HSS being a "hard" material this makes the tool brittle, this is the case with all drill bits on the market. So to get the best usage out of your drill bits it's best to use cutting fluid/oil which will reduce heat build up on the tip of the drill and prevent it from losing it's hardness. 4. HSS drill bits are harder than normal steel thus able to drill through materials that are softer than HSS; Steel, various metals, wood etc. Package Included: 1 x HSS Drill Bit Set (25pcs) Attention: Correct speed and angle of drill is also important ro reduce breakage. Drills last longest being used in drill presses(bench drill) as they keep drill bits at a precise virticle without deflection. If used in hand drills care must be taken. Notice: 1. Please allow a bit error due to manual measurement. please make sure you do not mind before you bid. 2. The color may have different as the difference display, pls understand. More Details: