QLOUNI 7Pcs 300mm11_8 inch Extra Long Drill Bit 4mm_ 5mm_ 6mm_ 7mm_ 8mm_ 10mm_ 12mm Round Shank Brad Point Augers Drill Bits_ Wood Drill Bit Set for Hard

If you need longer bits to do DIY, home and general building/ engineering, the QLOUNI 7Pcs 300mm/8'' Extra Long Drill Bits Set are highly recommended. The Brad-Point Design can penetrate surface quickly because of the sharp point on the tip. This allows the user to pinpoint the mark with the drill bit. Features: ? Carbon Steel Long Drill Bit with heat treatment, durable. ? Polished cutting edge for reduced friction. ? Ideal for DIY, home and general building/engineering using. ? High hardness and sharp, perfect for drilling the extra thick wood, metal, plastic, PVC and other different materials. ? 7 sizes in one drill bit set(4mm, 5mm, 6mm, 7mm, 8mm, 10mm, 12mm), which meet your different needs perfectly. Note: Safety first! In order to avoid bit breakage, you need to add water or coolant to cool down during use! Specification: Material: Carbon Steel Color: Black Length: 300mm/11.8 inch Shank: Round Shank Point: Brad Point Flute: Spiral Flute Diameter: 4mm, 5mm, 6mm, 7mm, 8mm, 10mm, 12mm Package includes: 7 × Drill Bits