Synthes 3.2mm Quick Connect Drill Bit | 6" Length | 310.31

The Synthes 310.31 is a high-performance surgical cutting instrument engineered for the primary preparation of pilot holes in dense cortical bone. As a 3.2mm diameter bit with an extended 6-inch (152mm) length, it is the foundational drilling component for the Synthes 4.5mm Large Fragment System. It is specifically designed to create the precise minor diameter required for 4.5mm cortex screws and 6.5mm cannulated screw pilot paths.

Constructed from hardened surgical-grade stainless steel, the 310.31 features a dual-flute geometry optimized for rapid bone chip evacuation and thermal management. The Quick Connect shank ensures a secondary-lock fit into surgical power tool couplings, preventing intraoperative slippage and allowing for rapid transitions between drilling, measuring, and screw insertion.

Key Specifications

• Manufacturer: Synthes (DePuy Synthes)

• Model / REF: 310.31

• Diameter: 3.2 mm

• Overall Length: 6 inches (approx. 152 mm)

• Shank Type: Quick Connect (QC)

• Material: Hardened Stainless Steel

• Compatibility: Synthes Large Fragment System (4.5mm/6.5mm hardware)

• Calibration: Non-calibrated (Standard length)

• Quantity: 1 Each

Technical & Clinical Advantages

• Precision Pilot Preparation: The 3.2mm diameter is calibrated to the core diameter of 4.5mm cortex screws. This ensures maximum thread engagement and pull-out resistance by leaving the optimal amount of bone for the screw threads to "bite" into.

• Extended Reach: The 6-inch length provides the necessary clearance for deep anatomical corridors, such as the femoral shaft or pelvic ring, ensuring the power tool handpiece remains at a safe distance from the soft-tissue envelope.

• Advanced Flute Geometry: The precision-ground flutes are designed to clear bone debris efficiently. This reduces "clogging," which in turn lowers friction-generated heat, mitigating the risk of thermal osteonecrosis and promoting faster biological healing.

• Tapered Quick Connect Shank: Designed for seamless integration with standard orthopedic power equipment (e.g., Stryker, Hall, or Synthes Air/Battery drives). The QC interface allows for one-handed attachment, saving critical time during complex trauma cases.

• Surgical Grade Durability: Engineered to maintain a sharp cutting edge through multiple cycles of dense cortical drilling, reducing the "skating" effect often seen with dull or inferior bits.

Applications

• Long Bone Trauma: Drilling pilot holes for 4.5mm screws in the femur, tibia, and humerus.

• Pelvic Reconstruction: Creating deep paths for long 4.5mm or 6.5mm screws in the ilium and acetabulum.

• Plate Fixation: Standard drilling through 4.5mm DCP, LC-DCP, and LCP plate holes.

• Tension Band Wiring: Creating transverse tunnels for K-wire or cerclage wire placement in patellar or olecranon fractures.

Condition & Quality Assurance

• Status: NEW.

• Integrity: This instrument is unused and maintains its factory-sharp cutting tip and concentric shaft alignment.

• Sterilization Note: This is a NON-STERILE, REUSABLE instrument. It must be thoroughly cleaned and sterilized via validated steam autoclave protocols in accordance with facility guidelines and Synthes’ Instructions for Use (IFU) prior to clinical application in 2026.

• Professional Standards: With over 25 years of experience in orthopedic logistics, Primis Medical ensures all surgical cutting tools are stored and handled to preserve their mechanical edge and structural integrity.

Shipping & Handling

• Secure Logistics: Shipped in a protective, rigid sleeve to ensure the 3.2mm tip and 6-inch shaft remain perfectly straight and sharp during transit.

• Fast Dispatch: Ships within 1 business day.