Features 1、Multi Purpose: Extra long HSS drilling bits is suitable for iron aluminum copper, stainless steel, high speed steel, manganese steel, all kinds of quenched steel. 2、Fast Drilling: HSS straight shank drill adopts spiral chip removal design, smoother chip removal, smoother and incisive slot, fast cutting, high drilling efficiency. 3、High Accuracy: Extra long twisting drill adopts 118° incisive angle design, fast and accurate drilling, saving time and effort, and improving work efficiency. 4、Excellent Material: Extra long drill bit are made of high quality high speed steel, with high hardness, stable performance, sharpness and durability. 5、Practical Durable: Straight shank drill bits has a finely ground and incisive edge to meet different cutting precisions. It is very sturdy and practical. Specification Item Type: Extra Long HSS Drilling Bits Product Material: High Speed Steel Product Length:Approx. 200mm / 7.9in Product Diameter:Approx. 3mm / 0.12in Product Quantity: 10pcs Scope of Application: Used for Processing Non Ferrous Metals Package List 10 x Extra Long HSS Drilling Bits