Non-rotating pick with a pressed in carbide segment

1. A high impact resistant tool, comprising:

a cemented metal carbide substrate having a non-planar interface;

a superhard material bonded to said cemented metal carbide substrate at said non-planar interface;

a cemented metal carbide segment, said cemented metal carbide segment having a front end and a base end spaced apart from said front end, said cemented metal carbide substrate being bonded to said cemented metal carbide segment at said front end;

a carbide stem formed in said base end of the cemented metal carbide segment; and,

a steel body having an interfacial surface with a bore disposed therein, said bore being sized and shaped to receive said carbide stem in a press fit, said interfacial surface having a reentrant formed thereon.

2. The high impact resistant tool of claim 1 , wherein the cemented metal carbide segment comprises a central axis about which the cemented metal carbide segment includes a symmetric geometry.

3. The high impact resistant tool of claim 1 , wherein the carbide segment comprises an asymmetric geometry about its central axis.

4. The high impact resistant tool of claim 1 , wherein the bore of the steel body is tapered.

5. The high impact resistant tool of claim 2 , wherein the superhard material comprises a substantially conical surface with a side forming an angle of 35 to 55 degrees with the central axis.

6. The high impact resistant tool of claim 5 , wherein the angle is such that a portion of the steel body is protected from contacting a formation being degraded by the tool.

7. The high impact resistant tool of claim 1 , wherein the superhard material has a substantially pointed geometry with an apex comprising a radius of curvature of 0.050 to 0.125 inches.

8. The high impact resistant tool of claim 7 , wherein the superhard material comprises a thickness of 0.100 to 0.500 inches from the apex to the non-planar interface.

9. The high impact resistant tool of claim 7 , wherein the substantially pointed geometry comprises a convex side.

10. The high impact resistant tool of claim 7 , wherein the substantially pointed geometry comprises a concave side.

11. The high impact resistant tool of claim 1 , wherein a portion of the steel body comprises hard facing.

12. The high impact resistant tool of claim 1 , wherein the superhard material comprises polycrystalline diamond, vapor-deposited diamond, natural diamond, cubic boron nitride, infiltrated diamond, layered diamond, diamond impregnated carbide, diamond impregnated matrix, and silicon bonded diamond.

13. The high impact resistant tool of claim 1 , wherein a gap is formed between a base of the stem of the cemented metal carbide segment and a floor of the bore of the steel body.

14. The high impact resistant tool of claim 2 , wherein the superhard material comprises a flat geometry.

15. A high impact resistant tool, comprising:

a superhard material;

a cemented metal carbide substrate, said superhard material being bonded to said cemented metal carbide substrate;

a cemented metal carbide segment, said cemented metal carbide segment including:

a front end, said cemented metal carbide substrate being bonded to said front end;

a base end opposite said front end;

a stem formed in said base end; and,

a steel body, said steel body having a substantially flat interfacial surface between said steel body and said cemented metal carbide segment, said interfacial surface having reentrant and a bore formed therein, said bore being sized and shaped to receive said stem in a press fit.

16. The high impact resistant tool of claim 15 , wherein the superhard material has a substantially pointed geometry with an apex comprising a radius of curvature of 0.050 to 0.125 inches.

17. The high impact resistant tool of claim 15 , wherein the superhard material comprises a substantially conical surface with a side forming an angle of 35to 55 degrees with the central axis.