Drill Bits

For producing clean holes in sheet metal and other thin walled materials. Efficient cutting geometry, no pre-drilled pilot hole and the diameter of the finished hole is infinitely variable within the range of each drill, according to depth of feed.

Heavy duty drill made of 8% cobalt material with excellent heat resistance. For drilling steels up to 1,400N/mm2, stainless steel, heat resistant steels and bronze. Ideally suited for volume production on automatics. Point angle: 135°, helix angle: normal, web thickness: strengthened, tolerance of diameter: h8, tolerance of shank: f11. Manufactured to BS 328, DIN 1897RN. Point to DIN 1412C.

Series L100

General purpose drills to drill steels with tensile strength up to 1,000N/mm2, cast steel, grey cast iron, malleable cast iron, nickel brass and graphite. Point angle: 118°, helix angle: normal, web thickness: normal, relief angle: 10° - 20°, tolerance of diameter: h8, tolerance of f11. Manufactured to BS 328; Part 1: 1986, DIN 340 RN, ISO 494.

Solid carbide printed circuit board drills. Suitable for drilling through printed circuit boards. Shank diameter 3.175mm, 38mm overall length. Manufactured to DIN 1899.

Special drill for accurate and fast spotting on NC machines, jig drills and other capital-intensive boring machines. For countersinking and chamfering of tapping holes in one operation. Please note: Only suitable for shallow depth drilling.

Series T100

To drill steels with a tensile strength up to 1.000 N/mm2, cast steel, grey cast iron, malleable cast iron, nickel brass and graphite. Point angle: 118°, helix angle: normal, relief angle: normal, tolerance of diameter: h8. Manufacturing Standard: DIN 345.

General purpose drills for steels, cast steel, grey cast iron, malleable cast iron, nickel brass, aluminum alloy and graphite. Point angle: 118°, helix angle: normal, web thickness: standard, relief angle: 10°-20°, tolerance of diameter: h8, tolerance of shank: f11. Manufactured to BS 328/DIN 338RN.

Bright finish

Drills with a bright finish are supplied in the as-ground condition and such tools are used generally in the machining of non-ferrous materials.

The addition of up to 8% cobalt allows higher speeds to be used without reducing the life of the tool, increasing productivity. 28° helix and 135° point. Manufactured to DIN 338 RN. Point to DIN 1412C.

Industrial quality. Ground flute, blue finish, except for SHR-025-8520K (bright finish). Supplied in indexing metal cases. Manufactured to BS328 : Part 1 : 1986, DIN 338N & ANSI B94 – 11M.

Designed for close tolerance hole location. Carbide spot drills are more wear resistant than HSS spot drills. Suitable for continuous production on aluminium, plastics, free cutting steels, cast iron, titanium and some aerospace materials. The stability of carbide makes the tool more rigid and less likely to deflect, maintaining a higher level of accuracy. Operators should note that continuous heavy shock loading may cause the tool to fail due to its brittleness.

Ground flute, for drilling centre holes on components prior to machining. Extra length drills particularly useful for drilling centre holes in recesses. Manufactured to

BS 328 : Part 1 : 1986, DIN333A :

ISO 86, ISO2540, ISO2541.

Used to produce 60° centres in components for subsequent manufacturing operations to ben carried out. Tool life is extended and difficult materials may be drilled. 60° included angle. 118° drill point. Manufactured to BS 328.

For drilling steels, cast steels, cast iron, chilled cast iron, malleable cast iron, non-ferrous heavy and light metal and abrasive plastic. Point angle 118°. Tolerance of diameter: h7. Tolerance of shank: h6. Supply unit, all diameters - 1 pce. Manufacturing Standard: DIN 338, DIN338.

Stub centering drills designed for sheet metal drilling and spotcentring operations with a strong supporting web and a reduced chisel edge to help penetration.

Jobber length blank hardened and ground all over. Accurately ground without back taper. Diameter tolerance: h8. Manufactured to DIN 338.