standard

2 1/8 Inch Drill Bit Standard

This page provides standardized, specification-oriented reference information.

Specifications

Specification	Value
Diameter	2 1/8 inch (2.1250 in)
Common Uses	Very large holes in wood; commonly hole saw; verify arbor/pilot and adequate clearance
Shank	Varies by hole saw system; verify arbor/chuck compatibility

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Last updated: February 23, 2026