GUHRING Solid carbide twist drill 12xD type 1228

Design: Ultra-finest grain-solid carbide, according to factory standard, type RT 100 U.
Fire coated surface, right cutting with special point geometry and ratio point thinning. With internal cooling. Normal angle of rake, core thickness thicker than normal and without core gradient. The drill has a very good self-centring behaviour and produces short chips, even from long-chipping materials.

Hard metal application group: K/P ?universal use.
(Ultra-fine grain K05?K50/P05?P50)

Application: For accurate holes
with narrow Ø tolerances and good surfaces. Suitable for drilling deep holes up to 12 x D with high cutting values. Particularly suitable for economical production of deep drill holes in steel, castings and non-ferrous metals.

Note: The drills can be sharpened and recoated several times.