Gilson CDA-160, 6in Concrete Core Drill Bit (Open-Head)

Nominal Bit Size, OD:
6in (152.4mm)
Mounting Connection:

Price $370.98
Estimated delivery in 4-7 days after ordering
* Estimate is for US customers only.
* Shipping and Import Duties are calculated at checkout.

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Gilson Concrete Diamond Core Drill Bits

CDA-160 6in (152.4mm) Concrete Core Drill Bit (Open-Head) is used with Gasoline or Electric-Powered Core Drills to obtain drilled cores of hardened concrete or asphalt for laboratory testing or evaluation. The Coring Bit attaches to the drilling machine with a properly sized Expander Set. Diamond Bits perform well in high-output, heavy-use applications, and can be refurbished when worn. Diamond Coring Bits are designed for wet-use with reinforced concrete and similar hard materials. Fast-cutting when used for indicated applications. The standard 14in (356mm) length allows for cutting cores in lengths up to 12in (305mm).

Expander Sets for Open-Head Concrete Coring Drill Bits are required to connect Open-Head Concrete Coring Bits to the drilling machine, and are purchased separately in sizes corresponding to the bit. Final core diameter is approximately 0.25in (6.4mm) smaller than nominal outside diameter.


  • Fast-cutting capability for concrete and asphalt materials
  • Attaches to drill machine with size-specific Expander Set
  • Meets ASTM and AASHTO standards

Included Items:

6in Concrete Core Drill Bit (Open-Head)


CDA-50 6in Expander Sets for Open-Head Concrete Coring Drill Bit required to attach bit to drilling machine


  • Application: Concrete
  • Nominal Bit Size, OD: 6in (152.4mm)
  • Mounting Connection: Open-Head
  • Estimated Shipping Weight: 9.0lb (4.08kg)

Meets Standard(s):

  • AASHTO T 24M/T 24
  • ASTM C42/42M
6in Concrete Core Drill Bit (Open-Head)

Gilson CDA-160, 6in Concrete Core Drill Bit (Open-Head)