NITYA HSS Twist Drill Bits Set Fast Cutting Masonry Drill Bit

?Strong & Durable?These twist drill bits are made of premium high speed steel with titanium coated, high wear and heat resistant, anti-rust treatment and a reinforced head prevents bit cracking and provides a longer life. ?Precise & Efficient?Twist drill bits with sharp grinding carbide tips can provide faster start and less walking in concrete, bricks and blocks. Wide slot design provides fast dust removal capability and reduces heat. ?Spiral Groove Design?Fully ground spiral flutes are designed to quickly reduce friction and heat for faster, cooler drilling performance. Straight shank has a 135 degree split point to prevent walking for more accurate and faster drilling. ?Multiple Size?Our twist drill bit has 6 different sizes: 3mm, 4mm, 5mm, 6mm, 6.5mm, 8mm, which can meet your different daily need. We provide 3 different kinds of package. Please make sure the size before purchase. ?Wide Application?These twist drill bits are suitable for pulling groove, boring or cutting thin wood, solid wood, multilayer board, MDF, plastic board, aluminum, thin iron sheet, aluminum alloy, etc. Detailed description: Specification: Product name: Twist Drill Bit Material: high speed steel, titanium coated Color: gold + silver Size: 3mm / 0.12 in, 4mm / 0.16 in, 5mm / 0.2 in, 6mm / 0.24 in, 6.5mm / 0.26 in, 8mm / 0.31 in Feature: spiral groove, fast drilling, multiple size Application: drilling and cutting wood, soft metal, aluminum plate, iron, etc. Quantity: 3pcs (A), 3pcs(B), 6pcs (optional)