Combined drill/tap bit — WIHA 27898
What it is
WIHA 27898 is a combined drill and tap bit designed for M4 screws. The product combines drilling, tapping, and deburring functions in one bit, with a 1/4" hex shank (DIN 3126, C6.3) and an overall length of 39 mm.
Function and Use
The bit is used to drill pilot holes, tap threads, and deburr in one operation. It is made of ground HSS steel. The manufacturer's product page explicitly states that WIHA 27898 is suitable for use in cordless drills.
- Drilling, tapping, and deburring in one operation.
- Fits tools with 1/4" hex shank according to DIN 3126 (C6.3).
- Stated as suitable for cordless drivers.
Typical Applications
The following applications are directly from the manufacturer's information and describe how WIHA 27898 is typically used:
- Assembly by drilling and simultaneously tapping.
- Repair and rethreading of existing threads.
- Deburring after drilling/tapping operations.
Documentation
Product information and technical data are provided on the manufacturer's product page.
Specifications
- Manufacturer: WIHA.
- WIHA order no.: 27898.
- Application: Designed for M4 screws (combined drilling, tapping, and deburring).
- Overall length: 39 mm.
- Shank: 1/4" hex (DIN 3126, C6.3).
- Material: HSS steel, ground.
- Packaging: Blister packed.
- Stated standards/drive: DIN 3126, ISO 1173; drive conformity DIN 3120 / ISO 1174 (style A 6.3 + A 10).
- EAN: 4010995278984.
- Series: 7807.
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