10pcs Alloy Triangle Spear Point Head Ceramic Marble Tile Glass Drill 2

Description: Designed with high speed steel construction with titanium coating for proven capability and durability Widely Used for drilling holes in masonry concrete rock artificial stone durable and practical for all projects Straight shank for standard drill chucks and collet chuck to hold firmly assuring accurate centering Enhancing rust protection property through adopting special overall treatment Brand New with Premium quality practical and useful tools Specification: Material: Alloy Steel Size#1: approx. 6mm x 70mm / 0.23 x 2.75 inch; Size#2: approx. 8mm x 72mm / 0.31 x 2.83 inch; Size#3: approx. 10mm x 72mm / 0.4 x 2.83 inch; Size#4: approx. 12mm x 72mm / 0.47 x 2.83 inch; Total Amount: 10 Pieces Package Includes: 10 Pieces Alloy Triangle Drills