4.25in Concrete Core Bit (Closed-Head)

4.25in (108mm) Concrete Core Drill Bit (Closed-Head) is for use with gasoline or electric-powered Core Drilling Machines to obtain drilled cores of hardened concrete or asphalt. The core bit has one-piece seamless construction and easily attaches directly to the drilling machine; it works best in light to medium-duty applications.

Diamond Coring Bits are designed for wet use and offer solid performance for recovering cores from reinforced concrete and similar hard materials. Capable of fast-cutting when used in applications indicated. The bit has an overall length of 20.5in (520.7mm) and is capable of coring up to a total depth of 18in (457.2mm). The coring bit can be refurbished when it appears worn. The final core diameter is approximately 0.25in (6.4mm) smaller than the nominal outside diameter.

Features:

• Designed for fast cutting based on application
• Quickly attaches to drill machine
• Complies with ASTM and AASHTO standards
• Fits standard core drills with 1-1/4” diameter, 7 threads per inch

Included Items:

• 4.25in Concrete Core Drill Bit (Closed-Head)