Attributes . 4H . Names

Battery Life (1)   Chipbreaker Number (1)   Class of Fit (8)   Hardness (2)   Lead Degree (Hardness) (2)   Model (40)   Model Code (2)   Nominal life (1)   Pencil Refill Grade (2)   Pitch Diameter Limit (8)   Series (4)   Tack Free Time: (1)   Thread Limit (8)   thread tolerance class (10)