Features: Straight shank design is more suitable for many electric drills and drilling machines HSS-drill bits for drilling: High speed tool steel removes chips and particles fast, making drilling more accuracy and fast. Suitable for electric drills, they can be used for repairs, installations and renovations in metal, wood and plastic. Sharpen and wear-resistant material: these drills are made from high speed steel and titaniums coated for reliable performance and durability. Wide range of applications: the drills do not require a pilot-hole to remain centred. These workpiece self-centring drill bits are hard enough and long enough to fit most corded or cordless hand drills and drill presses. Ideal for drilling mild steel, aluminium, copper, soft alloy steel, wood and plastics. Set includes: 1/16‘(16pcs),5/64’(16pcs),3/32‘(15pcs),7/64’(10pcs),1/8‘(10pcs),9/64’(8pcs),5/32‘(8pcs),11/64’(3pcs),3/16‘(3pcs),7/32’(2pcs),... 15/64‘(2pcs),1/4’(2pcs),5/16‘(2pcs),3/8’(2pcs). Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Quantity: 99PCS Package List: 99pcs/Set HSS-Drill Bits