Ambidextrous utility knife

1. A cutter apparatus comprising:

a housing with a blade carrier configured for holding a blade; and

a handle coupled to the housing via an engagement interface configured to allow a user of the cutter apparatus to selectively interfit together the housing and the handle in multiple different cutter apparatus configurations;

wherein the engagement interface includes a coupler configured to permit the housing and the handle to be repositioned further apart in a housing/handle reconfiguring mode in which the handle is rotatably repositionable in relation to the housing or vice versa and to engage a portion of the handle when the handle and the housing are interfitted together in a locked configuration;

wherein the coupler includes a channel and a spring-biased circumferential detent configured to receive a complementary ridge structure of the channel therein providing a circumferential engagement of the housing and the handle in the housing/handle reconfiguring mode.

2. The cutter apparatus of claim 1 , wherein the engagement interface includes an interior interface configured to couple the housing and the handle together.

3. The cutter apparatus of claim 2 , wherein the interior interface is configured to slidably and rotatably couple the housing and the handle.

4. The cutter apparatus of claim 1 , wherein the engagement interface includes a bearing, and the channel includes or is provided with an inwardly extending annular ridge and the bearing includes or is provided with one or more engagement surfaces configured to be repositionable in relation to the channel, the ridge and the bearing being configured such that the ridge prevents the bearing from exiting the channel.

5. The cutter apparatus of claim 1 , wherein the engagement interface includes a bearing secured within and repositionable in relation to the channel, the bearing including a recess that engages a portion of the handle when the handle and the housing are in the housing/handle reconfiguring mode.

6. The cutter apparatus of claim 5 , wherein the recess is circumferential.

7. The cutter apparatus of claim 5 , wherein the bearing includes a ridge that engages the handle when the handle and the housing are interfitted together in the locked configuration.

8. The cutter apparatus of claim 7 , wherein the engagement interface is configured such that the ridge engages an inner portion or surface of the handle when the handle and the housing are interfitted together in the locked configuration.

9. A cutter apparatus comprising:

a housing with a blade carrier configured for holding a blade; and

a handle coupled to the housing via an engagement interface configured to allow a user of the cutter apparatus to selectively interfit together the housing and the handle in multiple different cutter apparatus configurations;

wherein the engagement interface includes a channel and a bearing configured to permit the housing and the handle to be repositioned further apart in a housing/handle reconfiguring mode in which the handle is rotatably repositionable in relation to the housing or vice versa;

wherein the channel includes or is provided with an inwardly extending annular ridge and the bearing includes or is provided with one or more engagement surfaces configured to be repositionable in relation to the channel, the ridge and the bearing being configured such that the ridge prevents the bearing from exiting the channel.

10. The cutter apparatus of claim 9 , wherein the engagement interface is configured to allow the housing and the handle to interfit in multiple different predetermined configurations.

11. The cutter apparatus of claim 9 , wherein the engagement interface includes an exterior interface configured to automatically lock the housing and the handle together when the housing and the handle are repositioned to interfit together in one of the cutter apparatus configurations.

12. The cutter apparatus of claim 11 , wherein the exterior interface is configured to allow a user of the cutter apparatus to unlock the housing and the handle by actuating multiple release devices provided on one or more of the housing and the handle.

13. The cutter apparatus of claim 9 , wherein the bearing is secured within and repositionable in relation to the channel.

14. The cutter apparatus of claim 9 , wherein the bearing includes a recess that is configured to engage opposite sides of the ridge facilitating rotational mobility of the handle in relation to the housing, or vice versa.

15. The cutter apparatus of claim 9 , wherein the engagement interface includes a spring-biased circumferential detent configured to receive a complementary ridge structure of the channel therein providing a circumferential engagement of the housing and the handle in the housing/handle reconfiguring mode.

16. The cutter apparatus of claim 9 , wherein the blade carrier is configured for holding the blade in multiple different cutting edge orientations in relation to the housing, the cutting edge orientations including a pair of cutting edge orientations that are mirror images of each other.

17. The cutter apparatus of claim 16 , wherein the multiple different cutter apparatus configurations include a pair of configurations which, in conjunction with cutting edge orientations respectively selected from the pair of mirror image cutting edge orientations, accommodate ambidextrous operation of the cutter apparatus.

18. The cutter apparatus of claim 9 , wherein the housing includes multiple guards.

19. The cutter apparatus of claim 18 , wherein the handle is coupled to and repositionable in relation to the housing to multiple different engagement positions at which the housing and the handle are secured together and a different guard is positioned for contact with a workpiece for each of the engagement positions.

20. A cutter apparatus comprising:

a housing with a blade carrier configured for holding a blade; and

a handle coupled to and repositionable in relation to the housing to multiple different engagement positions at which the housing and the handle are secured together, the housing and the handle being configured such that when not secured together the housing and the handle remain coupled together and are repositionable in relation to each other to a housing/handle reconfiguring mode at which a circumferential engagement interface facilitates rotational mobility of the handle in relation to the housing about a rotational axis, or vice versa, while resisting a longitudinal repositioning of the housing toward to the handle, wherein the rotational axis extends longitudinally in a length direction of the cutter apparatus.