Fowler / Sylvac Electronic Micrometer Set Quick displacement thimble and ratchet saves time and eliminates operator feel! Large, easy-to-read display with inch/metric conversion! Features include... 0-4" / 100mm Measuring Range 0.00005" / 0.001mm Resolution Maximum error: .00012"/.003mm Auto On/Off Position recall IP67 rated protection Quick displacement thimble Adjustable measuring force, 5N/10N Non-rotating spindle USB output Carbide anvils Includes a shop-hardened case. Micrometers includes LIFETIME WARRANTY Set includes 1 each of the following... 0-1.18" / 0-30mm Rapid Micrometer 1.18"-2.6" / 30-66mm Rapid Micrometer 2.6"-4.0" / 66-102mm Rapid Micrometer