
T38 T45 T51 Thread Rock Drilling Machine Tools Button Drilling Bit. Customized Design: Tailored diameter, air holes, and button shape based on customer requirements. Wide Thread Compatibility: Supports R22, R25, R28, R32, R35, R38, T38, T45, T51, ST58, T60 thread types. Durable Material: Constructed from high-quality alloy steel (42CrMo) and tungsten carbide tips (YK05). Versatile Application: Suitable for granite, marble, gold mines, railways, tunnels, and hard rock drilling. Flexible MOQ: No minimum order requirement for testing and trial orders. Fast Production: 2-3 days delivery for stock sizes; 25 days for custom production. Strict Quality Control: Experienced QC team performs strict inspection and testing before shipping. Customized Color: Color options available according to customer requests.