Page 6 of Gun Drills by Stock Precision Tools

single-fluted gun drill type tbe-solid carbide head suitable for most of the common materials we are able to manufacture these solid carbide head gun drills in the diameter range 2.0 to 40.0 mm with a maximum length of 3000 mm please use the form on page 16 for special inquiries orders for certain materials a coating is required as the successful application of gun drills with a bright surface finish cannot be guaranteed for coating definitions see page 18 the dimensions required to calculate the length for conventional machine tools head length workpiece driver max flute length per tool 40 x d for larger drilling depths apply two tools i.e Ø 10 x 450 and Ø 9.95 x 850 mm d re-grind up to d 6 4 x d up to d 20 2 x d up to d 40 1 x d g drilling depth flute length total length min distance ~4xd driver length c e a special designs suitable for all materials but for larger hole tolerances head forms position of supporting strips g c standard design suitable for all materials but for smaller hole tolerances suitable for difficult-to-machine materials i.e high-alloyed steels suitable for all materials but only when spotting conditions are unfavourable e a supporting strip d this design is predominantly suitable for grey cast iron standard point grinds special point grinds available see page 15 Ø 2 4.00 mm 30 Ø 4.01 20.00 mm 15° 20° 12° Ø 20.01 40 mm 15° 30 ° 18° 10° 3 ° 0° 15° d ° 25 35° 30° 20° 27° 10 15° 15° ° 35 0 0,3 30° 25° ,7 ° 30 20 ° 12 0,7 21° ° 1,2 40° ° d 4 d d d 4 d d 4 6 gun drills

[close]