Tru-Grind, Inc.
Precision Grinding and Honing Service
High volume precision honing for blind, thru, and step bore applications.

Honing
Tru-Grind leverages advanced honing processes that are designed to achieve unparalleled precision for your blind, thru, and step bore applications.

Quality
Experience how our honing solutions control to the tightest tolerances and lowest cylindricities and surface finishes.

Applications
With experience in over 1000 different honing applications, Tru-Grind leverages the best approach from a cost and quality standpoint for your part.
Honing Services
Roundness & Cylindricity
Establishing roundness and cylindricity as low as 0.000050" (1.25 μm).
Surface Finish
(Ra, Rp, Rz, Rpk, Rmr)
Generating surface finishes to meet Ra, Rp, Rz, Rpk, and bearing ratio (tp and Rmr) requirements.
Establishing finishes as low as 5 Ra (0.125 μm) and 32 Rz (0.8 μm)
Size & Tolerance
Honing IDs from Ø0.060" to Ø3.5" (Ø1.5 to Ø90 mm)
Holding tolerances as low as ±0.000025" (0.6 μm)
Bore Types
Honing thru, blind, and step bores that follow the incoming bore position.
Honing Capabilities