Faithfull Professional HSS Jobber 4.2mm FAIJ420PRO
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Buy Faithfull Professional HSS Jobber 4.2mm FAIJ420PRO
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Faithfull Professional HSS Jobber Drill Bit FAIJ420PRO | £1.95 |  | |||
Faithfull Professional HSS Jobber Drill Bit 4.2mm FAIJ420PRO | £1.95 | | |||
| £1.95 |  | ||||
Faithfull Professional Hss Jobber Drill Bit Loose 4.20Mm Ol:78Mm Wl:43Mm FAIJ420PRO | £1.13 |  | |||
The Faithfull Professional 4.2mm HSS Jobber Drill Bit is a specialist size commonly used for creating clearance holes for M4 fixings, tap drill applications, and precision engineering work requiring specific dimensions. This 4.2mm diameter provides the ideal clearance for metric M4 bolts and screws. Constructed from M2 grade high-speed steel and fully ground to meet DIN 338 standards, this 4.2mm drill bit incorporates a 135° non-slip split point that ensures immediate engagement with the workpiece, preventing drill wander and delivering precise hole placement without centre punching. The robust construction handles drilling through alloy steels, carbon steels, cast iron, hardened alloy steels and stainless steels. This 4.2mm size is particularly valued by mechanical engineers, assembly technicians, and maintenance professionals who regularly work with M4 fixings and require accurately sized clearance holes for smooth bolt passage and optimal thread engagement. Features and Benefits: • 4.2mm diameter ideal for M4 clearance holes • M2 grade HSS for extended tool life • 135° split point eliminates centre punching • Fully ground to DIN 338 standard • Professional grade for precision fixing work Please Note: Priced individually but supplied in packs of 10. Specifications: Tip Diameter (mm): 4.2 Working Length (mm): 43 Overall Length (mm): 78 Pack Qty.: 1
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