Proxxon Diamond Drilling & Grinding Bit - 3.2mm Ball, 2-Pack (No. 28234)

A ball-shaped diamond-coated drilling and milling bit for precision work in glass, stone, and granite with Proxxon MICROMOT rotary tools and drill presses. The diamond coating delivers the hardness needed to drill and mill through hard, brittle materials that conventional bits cannot penetrate. Recommended for use on a drill press at 2,000 RPM with additional coolant to prevent overheating and bit damage. Supplied in a 2-pack.

Specifications

• Shape: Ball
• Diameter: 3.2mm
• Shank diameter: 2.35mm (3/32")
• Coating: Diamond
• Quantity: 2 bits per pack
• Recommended speed: 2,000 RPM
• Coolant: Required for use
• Part No.: 28234

Best Suited For

• Glass
• Stone (including granite)
• Ceramics and porcelain

Please note: For best results, use on a drill press with coolant at 2,000 RPM. Not recommended for freehand use at high speeds without coolant.

Works Well With

• Proxxon IBS/A Cordless Drill/Grinder – Compatible MICROMOT rotary tool for lower-speed applications
• Proxxon Diamond Drilling & Grinding Bit 1.0mm – Finer bit for smaller holes in the same hard materials
• Proxxon Diamond Drilling & Grinding Bit 1.5mm – Step up for slightly larger holes
• Proxxon Diamond Twist Drills 0.8mm + 1.2mm – Twist drill format for cleaner entry holes in glass and ceramic
• Distar Water Guard Kit for Proxxon LWB/A – Coolant delivery system; recommended for safe use of this bit

• Order Processing: Orders are typically processed within 1–3 business days after confirmation.
• Delivery Time: Once dispatched, delivery usually takes 3–10 business days depending on your location.
• Tracking: You will receive a tracking number by email/SMS once your order ships.
• Shipping Charges: Shipping fees (if any) are shown at checkout. Free shipping may apply for selected products or order values.
• Incorrect/Undelivered Address: Please check your address carefully. Additional fees may apply if re-delivery is needed due to customer errors.

• Return Window: Returns are accepted within 7–14 days from the date of delivery.
• Eligibility: Items must be unused, in original condition, with original packaging and proof of purchase.
  
• Return Process: Contact customer support with your order details to initiate a return.
  
• Refunds: Refunds are processed after the returned item is received and inspected.
  
• Return Shipping Cost: Unless the item is defective or incorrect, return shipping is usually paid by the customer.