Carbide guide pads (also known as guide keys, guide bars, support pads) are indispensable wearing parts for BTA deep hole drill heads and gun drills. Mounted on the drill head body, they slide against the machined hole wall to provide stable radial support, suppress vibration and prevent tool offset during deep‑hole processing.
Without qualified guide pads, deep holes tend to suffer deflection, poor roundness, rough inner surface and premature insert failure. Our guide pads are fully precision ground from premium tungsten carbide blanks, delivering high hardness, outstanding wear resistance and thermal stability for long‑run heavy‑duty deep‑hole operations.
✅ Premium tungsten carbide substrate (WC‑Co grades K10 / K15 / K20), high hardness 88‑92 HRA, excellent impact & wear resistance
Made-in-Ch...
✅ Precision‑ground working surface, low friction, tight dimensional tolerance
✅ Optional PVD / CVD coatings (TiAlN, AlCrN) for steel, stainless steel, alloy steel, cast iron
✅ Double‑chamfer edge option for smooth entry & exit, reduce chipping risk, extend service life
✅ Interchangeable with mainstream GPS / 800‑series / PM‑series standard guide pads
✅ OEM & custom sizes: custom length, width, thickness, mounting hole upon drawings or samples
