Spiral point tap with chamfer form B with a 3.5-5xP plug lead, for British Standard Fine thread BSF 1/4" with 26 TPI and Medium class of fit, dimensions according to ISO 529 standard with 6.3mm shank and 5.0mm square drive, HSS with steam tempered surface finish for 2.5xD through hole threading in plain carbon and alloy steel and ferritic and austenitic stainless steel.
Product Specifications
 | Connection Diameter (Inch) | 0.248" | 
| Overall Length (Inch) | 2.5984" | 
| Clamping Width (mm) | 5mm | 
| Thread Diameter (mm) | 6.35mm | 
| No of Flutes | 3 | 
| Usable Length (mm) | 26mm | 
| Thread Diameter Size | 1/4 | 
| Threading Length (mm) | 14mm | 
| Material Code | HSS | 
| Thread Tolerance Class | Medium | 
| Cutting Direction | Right Hand | 
| Coating | Steam Tempered | 
| Tap Chamfer Style | B 3.5-5 | 
| Surface Color | Black | 
| Thread Form | BSF-British standard fine | 
| Country of origin | Brazil | 

Warning:
This product can expose you to materials and/or chemicals including arsenic, lead, and other materials and/or chemicals which are known to the state of California to cause cancer and/or reproductive harm.
For more information, visit www.P65Warnings.ca.gov
Brand:
                            Dormer
                        interval quantity:
                            1
                         
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