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IRWIN

12-Inch High Speed Steel Speedbor Woodboring Drill Bit Extension

Mfg.#
88601
Sku#
396325
  • Available in 6" and 12" lengths
  • Not for use with quick change woodboring bits
  • Heavy Duty

* Estimated stock levels as of Sat, Apr 11, 2026. All items subject to prior sale. Prices may vary between stores and online. Please call ahead to confirm availability of items marked as Limited Stock.

Description

For all wood bits with 1/4 in round shanks, three flats on shank. Follows 5/8 in and larger bits through hole. Heavy-duty, double set screw type, adds 6 to 12 in to regular bit lengths. Forged of finest quality tool steel. Allen wrench included.

Specifications

General

Includes (1) Allen Wrench
Material High Speed Steel
Overall Length 12 in
Pack Qty 1
Shank Type Hexagonal
Type Twist Drill Bit

Manufacturing Details
The following information is subject to change without notice

Country of Origin CN
Prop 65 Warning Warning WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

Dimensions

Shank Size 1/4 in

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