Our # 7 hobby knife features Grifhold's original 4 jaw chuck for superior holding power. 

Product Features:

• hobby knife is 5/16" in diameter and 4 5/8" long
• polished aluminum handle for greater control and non slip 
• 4 Jaw chuck for secure blade positioning
• includes one # 7-E  (No.11 blade) and safety cap 

Recommended for all lightweight materials including plastic, wood, balsa, vinyl film and cloth.  These hobby knives are must-have items for Do it Yourself and Arts & Crafts users.  These hobby blades are the ideal tools for vinyl sign designers, contractors, scrap-booking enthusiasts, artists, hobby buffs and research specialists.