Drillpro 6pcs HSS 1/4" Hex Shank Countersink Drill Bit Set UNC or Metric Deburr Countersink Bits

Description: Drillpro 6pcs HSS 1/4 Inch Hex Shank Combination Drill Tap Bit Set UNC or Metric Deburr Countersink Bits Complete Hole Drilling, Tapping And Deburring/Countersinking In One Operation With Power Drill Saves Labor, Time. Applicable to some types of carbon steel and ordinary steel, copper and aluminum magnesium alloy drilling hole. (The Metric one is the improved set so they are different as the UNCones) Specifications: Brand: Drillpro Material: High Speed Steel Type: Tap Shank: 1/4" (6.35mm) hex shank DIY Supplies: Metalworking Metric Size: M3x0.5, M4x0.7, M5x0.8, M6x1, M8x1.25, M10x1.5 UNC Size: 6-32NC (3.5mm) 8-32NC( 4.2mm) 10-32NC( 5mm) 10-24NC ( 5mm) 12-24NC( 5.7mm) 1/4-20NC( 6.35mm) Weight: Metric: 75g UNC: 50g Size Bit Diameter(mm) Shank Diameter(mm) Shank Length(mm) Blade Length(mm) Total Length(mm) M3x0.5 2.5 6.35 37 28 65 M4x0.7 3.3 6.35 36 29 65 M5x0.8 4.2 6.35 34 31 65 M6x1 5.0 6.35 34 33 67 M8x1.25 6.8 6.35 33 36 69 M10x1.5 8.5 6.35 32 38 70 6-32NC (3.5mm) 2.8 6.35 30 23 53 8-32NC( 4.2mm) 3.5 6.35 30 23 53 10-32NC( 5mm) 4.1 6.35 30 28 58 10-24NC ( 5mm) 3.8 6.35 30 28 58 12-24NC( 5.7mm) 4.5 6.35 30 28 58 1/4-20NC( 6.35mm) 5.1 6.35 30 28 58 Features: Suitable for soft metal tapping, such as aluminum plate, 3-4mm thickness. The advantage is opening, tapping, chamfering. Note: If you need to drill higher hardness materials, Please choose HSS 6542. Quantity: 6pcs UNC or Metric Tap Drill Bits Package Included: 1x Set (6pcs) Hex Shank Tap Drill Bits More Details: