• Manufactured from high quality alloy steel.• Rapid acting helix aids screw removal.• Includes tap wrench.• Extractors supplied in storage case.• Lifetime guarantee*.Manufactured from high quality alloy steel. Rapid acting helix aids screw removal. Includes tap wrench. Extractors supplied in storage case.• Manufactured from Chrome Molybdenum steel. • Rapid acting helix aids screw removal. • Includes tap wrench. • Supplied in storage case. • Lifetime guarantee*. • Model No. AK721Technical Specification:Contents: #1; 2-6mm(1/8"-1/4"), #2; 6-8mm(1/4"-5/16"), #3; 8-11mm(5/16"-7/16"), #4; 11-14mm(7/16"-9/16"), #5; 14-18mm(9/16"-3/4"), Tap WrenchNett Weight: 0.2kgDimensions: Length: 25mm x Height: 180mmWeight: 0.212KgWarranty: Life