The new custom Durometer bone probe easily gauges the depth of a hole created in a bone during spinal procedures using the custom Durometer silicone handle and chrome-coated shaft. The silicone handle allows for specific hardness or softness, depending on the surgeon’s preference. This allows for a secure and comfortable grip during procedures. With depth markings for measurement, the chrome-coated tapered shaft presents a clean, sleek look that is durable and scratch resistant. The back of the instrument features an impact cap for contact with hammers or other instruments. In addition, Gauthier Biomedical offers custom color handles to match any instrument kit specifications.