263 and 1263 Micrometer Heads 0-1"/0-25MM • Reading surfaces satin-finished for easy readability • No-glare, satin chrome finish on the 263, rust-resistant, stainless steel on the 1263 • Available with reverse reading, if needed • Ring-type knurled lock nut for quick and sure locking • Choice of smooth friction thimble for uniform pressure, combination ratchet and speeder for uniform pressure and quicker adjustment, or a plain micrometer head that depends on your own "feel" • Spindle face available plain or with carbide • Furnished with 1/2" (12.7mm) or 3/8" (9.5mm) diameter clamping surface Micrometer Heads 263RL ( ) 4-1/2" (105) 1-9/32" (32.51) 45/64" (17.89) 39/64" (15.47) .3750" .3745" (9.5250) (9.5123) 39/64" (15.47) 39/64" (15.47) 39/64" (15.61) .235" (5.969) 263L-38TN (0-1") dimensions ( ) 4-1/8" (105) 2-3/32" (53) 1-1/4" (53) 3/4" (19) 5/8" (16) .235" (5.969) .4999" .4994" 12.000 or 12.700 (+.000) (-.007) 5/8" (16) 263P (0-1") and 263MP (0-25mm) dimensions ( ) 4-61/64" (126) 1-1/4" (32) .235" (6.0) 2-5/16" (59) 3/4" (19) 5/8" (16) 5/8" (16) 25/64" (10) .4999" .4994" 12.000 12.700 (+.000) (-.007) 263RL (0-1") and 263MRL (0-25mm) dimensions 263 and 263M Micrometer Heads Cat. No. EDP Range Graduation 263P 51251 0-1" .001" 263P-38 67108 263P-38TN 67110 263L 51253 263XL 51265 263L-38 67109 263L-38TN 67111 263RL 51254 263FL 51256 RV263RL 57071 T263P 51258 0-1" .0001" T263L 51260 T263XL 65054 T263RL 51261 263MP* 51275 0-25mm 0.01mm 263ML* 51276 263MRL* 51257 263MXL* 65055 V263MRL* 55962 0-25mm 0.001mm RV263MRL* 64948 V263MXRL* 65056 1263 and 1263M Stainless Steel Micrometer Heads Cat. No. EDP Range Graduation 1263L 53200 0-1" .001" 1263RL 53201 T1263RL 53203 0-1" .0001" V1263MRL* 64345 0-25mm 0.001mm *0-25mm models specify clamping diameter 12 or 12.7mm. 12.7mm sent unless otherwise ordered. 68 M icrometers