Feature 1Wide Application: Suitable for drilling various materials such as die steel, Ibeam, channel steel, ordinary steel, angle iron, aluminum, copper, wood and stainless steel within 13mm. 23 Section Design: 3section stepped design, the shank diameter is controlled within 12.7mm/0.5in, suitable for drill chuck within 13mm/0.51in. 3Durable Construction: High speed steel material, high strength, not easy to rust, safe and durable to use, ensure fast execution in any material for clean results. 4High Accuracy: Precision ground with geometry of 135 degree split point for quick penetration and accurate startup. Improve work efficiency. 5Long Service Life: Surface black layer, antioxidation treatment, holds up better lubrication for smoother drilling. Withstand heavy duty operation for a long tool life.Item Type:Drill BitMaterial: High speed steelChip Flute Length: Approx. 5mm/0.2inBlade Length: Approx. 15mm/0.59inOuter Edge Angle: 135Series: 1/2 handle twist drillApplication: Suitable for drilling various materials such as die steel, I-beam, channel steel, ordinary steel, angle iron, aluminum, copper, wood and stainless steel within 1-3mm .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Drill Bit