CENTRAL SCIENTIFIC CO., CHICAGO, TT. S. A. 



203 



No. 4254. 



No. 4249C-D. 



No. 4260. 



No. 4264. 



4246. 

 4248. 



4249. 

 4250. 



42.12. 



42.14. 

 42.1(5. 



4258. 

 4260. 



4261. 

 4264. 



SCALE, Triangular, boxwood, one edge graduated for 12 inches in 

 scales of ,.., %, sHoi %, %, %, %, 1, 1% and 3 inches to the foot 

 For STRAIGHT EDGE, see No. 12974. 

 TRIANGLES, Celluloid. 



No 



Angles, degrees 



Longest side, inches 



Each 



TRIANGLES, Hard Rubber. 



No 



Angles, degrees 



Longest side, inches 



Each , 



TRIANGLES, Pearwood, framed. 



No 



Angles, degrees 



Longest side, inches 



Each 



T SQUARES, pearwood blade and head, fine quality 



Length, inches 



Each 



No. 4258. 



other edges have 

 $0.50 



A 



30&60 



6 



.30 



A 



30&60 



6 



.20 



A 



30 & 60 



6 



.15 



B 



30&60 



8 



.45 



B 



30&60 



8 



.30 



B 



30&60 



8 



.18 



24 

 .30 



C 



45 



6 



.45 



C 



45 



6 



.30 



C 



45 



6 



.18 



30 

 .45 



D 

 45 



8 

 .60 



45 



8 



.33 



D 

 45 



8 

 .25 



36 

 .60 



DRAW KNIFE, polished cast steel, razor blade, 8-inch 1.30 



DRAW PLATE, of hardened steel, for drawing wire to smaller sizes. Numbers are not standard 

 gauge, but approximate those of the Starrett gauge. With holes numbered from 1 to 30. 4.00 



DRILL, Breast, double gears, capacity of chuck to %-inch, two speeds; adjustable breast plate: 

 spindle runs in a hardened steel cone bearing 5.50 



DRILL, Hand, single gear, length 10% inches, with 8 'steel drill points from i/j 6 to i% 4 inch; 

 capacity of chuck to % 2 inch; holds either fluted or round shank drills. Frame all steel, pol- 

 ished and nickel-plated 2,65 



EXTRA DRILL POINTS for No. 4260, plain round shanks. May be used also with Nos. 4258, 4264 

 and 4270 Drills. In sets of eight, 1{ 6 to 1^4 inches Per set .70 



DRILL, Hand, double gears, two speeds, capacity of chuck to % inch; knurled nut; frame of 

 malleable iron, japanned 4.65 



