This 10-piece kit gives you 3 different methods of drilling in tight spots. Each shank is 1/4" x 28 which will thread into most drill spindles that angle attachments and angle drills are supplied with. 0.25 lb.

KIT INCLUDES:
• (4) #200 collets & adapters - drill sizes 11, 21, 30, & 40
• (4) threaded drill bits (1-1/4" length) - drill sizes: 10,21,30,40
• (1) Cone jaw chuck Model TP258 .