Features:
• Tried and tested 1000 times
• The chuck for every type of job
• With FThr or taper socket for stationary or hand-held drills and for hand-held impact drills
• The clamping force constant during drilling and impact drilling
• For clockwise rotating drills only
• Made in Germany

Specifications:
• Clamping width : 1 - 10 mm 
• Female thread : 1/2"-20 UNF 
• Outside Ø : 33,3 mm 
• Length (closed) : 61 mm 
• Weight : 0,2 kg 
• Key size : 2