15Pcs Hex Shank Deepened Socket Wrench Nut Driver Power Screw Drill Bits Tools Set 5.5mm~19mm Specifications: Quantity: 15Pcs / 16Pcs (Optional) Material: Steel 15Pcs Contain: 5.5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm 16Pcs Contain: 5.5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, telescopic bushing Item Size:  5.5mm: External Diameter 11mm,  Inner Diameter 5.5mm 6mm: External Diameter 11mm,  Inner Diameter 6mm 7mm: External Diameter 11mm,  Inner Diameter 7mm 8mm: External Diameter 12mm,  Inner Diameter 8mm 9mm: External Diameter 13mm,  Inner Diameter 9mm 10mm: External Diameter 14mm,  Inner Diameter 10mm 11mm: External Diameter 17mm,  Inner Diameter 11mm 12mm: External Diameter 18mm,  Inner Diameter 12mm 13mm: External Diameter 19mm,  Inner Diameter 13mm 14mm: External Diameter 20mm,  Inner Diameter 14mm 15mm: External Diameter 20mm,  Inner Diameter 15mm 16mm: External Diameter 22mm,  Inner Diameter 16mm 17mm: External Diameter 24mm,  Inner Diameter 17mm 18mm: External Diameter 26mm,  Inner Diameter 18mm 19mm: External Diameter 26mm,  Inner Diameter 19mm Total Length: 80mm / 3.15in Machining Depth: 34mm / 1.34in Package Weight: 1250g / 2.75lb Package Size: 32.5 * 13.8 * 3.8cm / 12.79 * 5.43 * 1.49in