Material: High Speed Steel Body, Titanium Coating Number of Pcs & Size: 32 x 1.0mm Twist Drill Bit 30 x 1.5mm Twist Drill Bit 30 x 2.0mm Twist Drill Bit 30 x 2.5mm Twist Drill Bit 20 x 3.0mm Twist Drill Bit 20 x 3.5mm Twist Drill Bit 12 x 4.0mm Twist Drill Bit 12 x 4.5mm Twist Drill Bit 12 x 5.0mm Twist Drill Bit 8 x 5.5mm Twist Drill Bit 4 x 6.0mm Twist Drill Bit 6 x 6.5mm Twist Drill Bit 4 x 7.0mm Twist Drill Bit 2 x 7.5mm Twist Drill Bit 3 x 8.0mm Twist Drill Bit 2 x 8.5mm Twist Drill Bit 1 x 9.0mm Twist Drill Bit 1 x 9.5mm Twist Drill Bit 1 x 10.0mm Twist Drill Bit Measurement System: Metric Weight: 1.5kg/3.3lbs (including the case) Package Includes: 1 Set of 230pcs Drill Bits with Case