Sworker

Diamond Drill Bits 1mm 1.5mm 2mm 2.5mm 5 Each 120-Grit 20Pcs with 4 Collets Compatible with Dremel Rotary Tool for Sea Glass Stone Shells Jewelry Making Porcelain Ceramic Gems

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R 661
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Description

  • Complete 20Pc Diamond Drill Bit Set with 4 Collets: Includes 5 each of 1mm, 1.5mm, 2mm, 2.5mm diamond coated twist drill bits. Each size comes with matching brass collet for secure fit in Dremel and similar rotary tools.
  • Perfect for Sea Glass, Stones & Jewelry Making: Drill clean holes through sea glass, shells, agate, quartz, amethyst, and gemstones. Ideal for creating pendants, necklaces, and wire-wrapped jewelry pieces.
  • Water Cooling Extends Bit Life: For thick materials like glass and stone, submerge in water or use continuous water flow to prevent overheating and cracking. Thin shells may not require water cooling.
  • Premium 120 Grit Diamond Coating: High-quality diamond grit coating provides smooth, precise holes. Twist drill design with matching collets ensures stable drilling without slipping or wandering.
  • Four Versatile Sizes for All Projects: 1mm to 2.5mm range covers pilot holes to larger pendant holes. Great value pack for hobbyists, jewelry makers and crafter.
Technical Specifications
Manufacturer
Sworker
Model
J120-10152025-20-4J
Color
Silver Grey
Size
20 Bits+4 Collets
Height
0.3 cm
Length
4.5 cm
Width
0.3 cm
Shipping & Delivery

Your order is shipped from the USA and delivered to your door in South Africa in 10–20 working days. All items are fully tracked.

Returns & Exchanges

We offer a 30-day return window. If something isn't right, contact our support team and we'll make it right.