10 PCS 0.3-4mm Hand Electric Drill Key Wrench

1. Material: chrome vanadium steel
2. Standard: metric
3. Surface treatment: chrome plating
4. Wide range of uses, a variety of specifications are available, suitable for all kinds of hand drills
5. Forged of chrome vanadium steel, strong hardness and durability
6. Flexible conversion, portable operation, increase speed
7. Comfortable grip and easy to use
8. Specifications: 0.3-4/0.6-6/1.5-10/1.5-13/3-16/5-20mm
9. Weight: 0.3-4mm about 15g/piece, 0.6-6mm about 24g/piece, 1.5-10mm about 20g/piece, 1.5-13mm about 42g/piece, 3-16mm about 62g/piece, 5 -20mm about 112g/piece
10. Size: 0.3-4mm about 4.5x3.5 cm/piece, 0.6-6mm about 5.7x3.4 cm/piece, 1.5-10mm about 5.6x3.4 cm/piece, 1.5-13mm about 8x4 cm/piece, 3 -16mm about 9x4.8 cm/piece, 5-20 about 10.55x5.6 cm/piece