1. Material: chrome vanadium steel
2. Purpose: spark plug sleeve
3. Laser scale, clear marking, easy to choose
4. Chrome vanadium steel forging, bright chromium plating treatment, more durable
5. Use with ratchet wrench, bending rod, connecting rod, universal interface
6. Interface: 3/8 (about 10mm)
7. Length: about 63mm
8. Weight: about 45g/piece for 12mm shrapnel, 52g/piece for 14mm shrapnel, 55g/piece for 14mm magnetic type, and 78g/piece for 16mm shrapnel