ITEM NAME:97pcs/Set Titanium Coated HSS High Speed Steel Twist Drill Bit 1.5-10mm Descriptio n Description: Suitable for most materials including steel, Copper, brass, wood, plastic, aluminum alloy, etc. Professional tool For DIY, Home and General Building/Engineering using. Specifications: 98PCS SET: Size & QTY: 1.5mm x 16; 2mm x 16; 2.5mm x 15; 3mm x 10; 3.2mm x 10; 3.5mm x 8; 4mm x 8; 4.5mm x 3; 5mm x 3; 5.5mm x 2; 6mm x 2; 6.5mm x 2; 8mm x 1; 10mm x1. Material: HSS Steel with 5% Cobalt. Finish: Titanium Coated. Package Included: 97 * Drill Bits We offer you what you need! 97pcs Titanium HSS-Co Twist Drill Bit Set For Metal Stainless Steel 1.5-10mm.Material: HSS Steel with 5% Cobalt. Finish: Titanium Coated. 98PCS SET: Size & QTY: 1.5mm x 16; 2mm x 16; 2.5mm x 15; 3mm x 10; 3.2mm x 10; 3.5mm x 8; 4mm x 8; 4.5mm x 3; 5mm x 3; 5.5mm x 2; 6mm x 2; 6.5mm x 2; 8mm x 1; 10mm x1.