Sherwood Extra Length Centre Drills HSS

Ground flute, for drilling centre holes on components prior to machining. Extra length drills particularly useful for drilling centre holes in recesses. Manufactured to BS328:Part 1:1986, DIN333A:ISO86, ISO2540, ISO2541.

For all dimensional specifications please refer to our catalogue.

Metric Series

Kennedy® Stub Length Drills Carbide

For drilling into steel, cast steel, cast iron, chilled cast iron, malleable cast iron, non-ferrous materials and abrasive plastic. Point angle: 118°, helix angle: 30°, tolerance of diameter: h7, tolerance of shank: h6. Manufactured to DIN 6539.

Tolerances:
Cutting Dia. plus 0.000mm - 0.015mm.
Shank Dia. plus 0.000mm - 0.030mm.

Kennedy® Carbide Stub Length Drills - Metric

Guhring Jobber Drills HSS TiN Coated

Standard drill for drilling steel and cast steel, alloyed and unalloyed grey cast iron, spheroidal iron, sintered powder metal, German silver and graphite. Type N, BS328, DIN338RN.

Series 651 - Metric

Dormer Stub Drills

A921
High productivity "one-hit" drilling to 3xD. Excellent performance across a wide range of materials. Parabolic flute design promotes constant chip flow. Alcrona Top coating for extended tool life
Size Range: 2.5-16.0mm. Manufactured to BS 323, DIN1897, ansi.

A921 HSCO Stub Drills

A9210
Excellent for: Carbon/alloy steels, stainless and cast iron
Good for: Titanium, nickel and copper

Sherwood Extra Length Drills Steam Tempered HSS

General purpose drills for steels, cast steel, grey cast iron, malleable cast iron, nickel brass, aluminium 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 : Part 1 : 1986.

For all dimensional specifications please refer to our catalogue.

Series E100 - Metric

SwissTech Jobber Drills HSS TiN Coated

General-purpose drill, to drill steels with a tensile strength up to 1,000N/mm2, cast steel, grey cast iron, malleable cast iron, nickel brass and graphite. TiN coating provides longer tool life. Point angle: 118. Helix angle: Normal. Web thickness: Normal. Relief angle: Normal. Tolerance of diameter: h8. Tolerance of shank: f11. Manufactured to DIN338RN.

Series 1001

Sherwood Gauge Drills HSS Steam Tempered

General purpose drills for steels, cast steel, grey cast iron, malleable cast iron, nickel brass, aluminium alloy and graphite. Point angle: 118, helix angle: normal, web thickness: standard, relief angle: 8 - 20, tolerance of diameter: h8, tolerance of shank: f11. Manufactured to ANSI B328, BS 328 and DIN 338.

Number & Letter Gauge Drills:
Gauge drills are still in common use in the U.S. In the past, they were popular elsewhere, but now have been largely discarded in favour of metric sizes. When using a gauge rather than a standard measurement of size the user has to refer to a table of gauge sizes. For example, to drill a hole which is 10 thou (thousandth of an inch .0010) bigger than a 1/8 inch bolt, the user must first work out that 1/8 inch is 125 thou, so the hole size needed is 135 thou, and then must look up in a reference book which gauge drill bit is closest to this diameter - a number 29. Number gauge sizes are similar or equivalent in some respects to, but different from, American wire gauge. Number gauge is usually used from size 80 (the smallest) to size 1 (the largest) followed by letter gauge size A (the smallest) to size Z (the largest). Number gauge is actually defined down to size 97, but these smaller sizes are rarely encountered. It happens that as the technology for making small drill bits and drilling small holes has become more available, metric drills have become the norm.

For all dimensional and technical specifications please refer to our catalogue.

Series J100 - Gauge Sizes

Sherwood® Solid Carbide Drills

General-purpose drills for drilling a wide variety of metallic and non-metallic materials. Point angle: 118°. Tolerance of diameter: h7. Tolerance of shank: h6. Supply unit. All diameters - 1 pce. Manufacturing Standard: BS 328, DIN 338.

J102 Solid Carbide Jobber Drills

Sherwood Drills Taper Shank HSS

General-purpose drills 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: DIN345.

For all dimensional specifications please refer to our catalogue.

Series T100 (MT1) - Metric

Dormer Centre Drills HSS

Used to produce 60 centres in components for subsequent manufacturing operations to be carried out. Manufactured to BS328, DIN333A, ISO866.

For all dimensional specifications please refer to our catalogue.

Series A200 - Metric

60 inclusive angle. 120 drill point.