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

Dormer Stub Drills

A920 - HSCo PFX Stub Drills
High productivity "one-hit" drilling to 3xD. Excellent performance across a wide range of materials. Parabolic flute design promotes constant chip flow.Size Range: 1.0-20.0mm. Manufactured to BS 323, DIN1897, ansi.

A920 - HSCo PFX Stub Drills - metric

A920
Excellent for:
Carbon/alloy steels, stainless, titanium and nickel

Good for:
Cast iron, copper, aluminium and thermoplastics

Sherwood® Centre Drills Solid Carbide

Used to produce 60° centres in components for subsequent manufacturing operations to be carried out. Tool life is extended and difficult materials may be drilled.
60° included angle.
118° drill point.
Manufactured to BS 328.
Tolerances:
Cutting diameter 0.0005
Shank diameter 0.0010
For all dimensional specifications please refer to our catalogue.

Guhring Bushing Drills Taper Shank HSS

Standard drill for use with drill bushings and for deep hole drilling in alloyed and unalloyed steel and cast steel, grey cast iron, malleable cast iron, spheroidal cast iron, sintered powder metals, German silver and graphite. Type N DIN341.

For all dimensional specifications please refer to our catalogue.

Series 257 (MT1) - Metric

Sherwood Jobber Drills Steam Tempered HSS

Suitable for drilling steel, cast steel, alloyed and unalloyed, grey cast iron, spheroidal iron, sintered powder metal, German silver and graphite. Manufactured to BS328/DIN338RN.

Black Finish (W-Finish)
This is the most common surface finish and is the result of a steam tempering operation in which steam is passed over the product during a controlled tempering cycle, producing a black oxide layer. Black tools are generally recommended for ferrous applications where the oxide layer aids chip flow, helps to dissipate heat by retaining some coolant on the tool surface and also helps to prevent the tool from staining.

Series J100

Kennedy Drills for Stainless Steel HSS-Co 8%

Deep hole drill with high heat resistance to drill non alloyed and alloyed steels as well as long chipping materials with tensile strength up to 1,300N/mm2. Special point design with web thinning form S optimised chip breaking and reduced feed force and torque. Ample chip space enables drilling over five times diameter deep without pecking. Point angle: 130. Helix angle: High. Web thickness: Strengthened. Relief angle: Normal. Tolerance of diameter: h8. Tolerance of shank: f11. Manufactured to DIN338.

Drills for Stainless Steel HSS-Co 8% - Inch

Guhring Jobber Drills Steam Tempered HSS

Suitable for drilling steel, cast steel, alloyed and unalloyed, grey cast iron, spheroidal iron, sintered powder metal, German silver and graphite. Manufactured to BS328/DIN338RN.

Black Finish (W-Finish)
This is the most common surface finish and is the result of a steam tempering operation in which steam is passed over the product during a controlled tempering cycle, producing a black oxide layer. Black tools are generally recommended for ferrous applications where the oxide layer aids chip flow, helps to dissipate heat by retaining some coolant on the tool surface and also helps to prevent the tool from staining.

Series 205

SwissTech Heavy Duty Stub Drills HSS-Co Cobalt TiN Coated

Heavy duty drill made of high quality 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. TiN coating provides longer tool life or increased cutting speeds. Point angle: 135. Helix angle: Normal. Web thickness: Strengthened. Tolerance of diameter: h8. Tolerance of shank: f11. Manufactured to DIN1897RN. Point to DIN1412C.

Series 2020

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 Jobber Drills Bright Finish HSS

General-purpose drills for steel, 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 BS328/DIN338RN. 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.

Series J100 - Metric - Bright Finish