PROXXON Diamond Ball Grinding Bits Glass Stone 1.2-3.2mm 28230 | Betontools — Betontools Australia Skip to content
Free Delivery to most areas AUS-Wide, when you spend over $199 Ex Gst T&C's Apply! See Shipping Info for Details.
Free Delivery to most areas AUS-Wide, when you spend over $199 Ex Gst T&C's Apply! See Shipping Info for Details.

PROXXON Diamond Ball Grinding Bits for Glass & Stone - Pack of 2

SKU 28230
by PROXXON
Original price $9.82 - Original price $10.27
Original price
$9.82  +GST
$9.82 - $10.27
Current price $9.82  +GST
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Availability:
In stock
Availability:
In stock
Availability:
In stock
Size: 1.2mm

PROXXON diamond ball grinding bits designed specifically for drilling and machining glass and stone, including granite. Available in 1.2mm, 2.2mm, and 3.2mm ball head sizes, all with a 2.35mm shaft. Recommended for use on a drill press at approximately 2,000 rpm with the addition of coolant for best results and maximum bit life. Sold as a pack of 2.

Key Features

  • Ball Head Profile: Optimised for drilling and machining curved holes and profiles in glass and natural stone.
  • Glass & Stone Specialist: Designed for glass and stone up to granite hardness — a different application to standard engraving bits.
  • 3 Head Sizes Available: 1.2mm (SKU 28230), 2.2mm (SKU 28232), 3.2mm (SKU 28234).
  • Use with Coolant at 2,000 rpm: Recommended for drill press use with coolant to extend bit life and improve cut quality.
  • 2.35mm Shaft: Fits standard rotary tool and drill press chucks.
  • Pack of 2: Two identical bits per pack.

Specifications

  • Head type: Ball
  • Head sizes: 1.2 mm (SKU 28230), 2.2 mm (SKU 28232), 3.2 mm (SKU 28234)
  • Shaft diameter: 2.35 mm
  • Recommended speed: ~2,000 rpm
  • Recommended use: Drill press with coolant
  • Application: Glass, stone, granite
  • Pack quantity: 2

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