
Professional Diamond Core Bits Adapter Dd-Bu to 1/4unc for Dd750 Dd250 Dd400. Wide Model Compatibility: Adapters designed for DD750, DD250, and DD400 core drill machines. Extensive Thread Options: Includes 14 specific models covering M22, 1-1/4-7, G1/2, and SDS PLUS threads. OEM and ODM Services: Full customization available from samples, designs, or complete custom requirements. Flexible Shipping Methods: Available via UPS, DHL, FedEx, Aramex, or air, sea, and land transport. Low Minimum Order Quantity: Accepts orders starting from just 1 piece. Diverse Payment Terms: Supports LC, T/T, D/P, PayPal, Western Union, and small-amount payments. Consistent Lead Time: Production completed within 15 workdays for both peak and off-peak seasons. Global Export Experience: 7 years of export history serving South America, Europe, and Southeast Asia.