Osborne arch punches are drop forged in one piece from the finest special carbon steel in sizes from 3/16" to 2-1/4" diameter. Larger sizes are made with our properly engineered two piece welded construction. A unique feature of the Osborne arch punch is the inside taper which permits the punchings to clear easily through the barrel. Punches have fully polished barrel and black enamel handle. The cutting edge is fully tempered all the way through and properly finished to provide long use trouble free punching. There is no other Hollow punch that can compare. MEETS GOVERNMENT STANDARDS Stock sizes shown below in millimeters with green enamel finish. Diameter (mm) Weight ea UPC No. (lbs) (oz) 4 - 3 01208 5 - 3 01210 6 - 3 01212 7 - 3 01214 8 - 3 01216 9 - 5 01218 10 - 5 01220 11 - 5 01222 12 - 5 01224 13 - 6 01226 14 - 6 01228 15 - 8 01230 16 - 8 01232 17 - 9 01234 18 - 9 01236 19 - 11 01238 20 - 10 01240 Diameter (mm) Weight ea UPC No. (lbs) (oz) 21 - 12 01242 22 - 12 01244 23 - 12 01246 24 1 - 01248 25 1 - 01250 26 1 - 01252 27 1 - 01254 28 1 2 01256 29 1 2 01258 30 1 2 01260 31 1 6 01262 32 1 4 01264 33 1 6 01266 34 1 6 01268 35 1 8 01270 36 1 10 01272 37 1 8 01274 Diameter (mm) Weight ea UPC No. (lbs) (oz) 38 2 - 01276 39 2 - 01278 40 1 13 01280 41 2 12 01282 42 2 12 01284 43 3 - 01286 44 3 - 01288 45 3 - 01290 46 3 - 01292 47 3 8 01294 48 3 8 01296 49 3 12 01298 50 3 12 01300 51 4 - 01302 52 4 - 01304