Sherwood Reduced Shank Drills (Blacksmiths) - 1/2" Parallel Shank HSS

General-purpose drills for light duty work, for drilling steels, cast iron, nickel brass and graphite. Reduced parallel shank 1/2". Point angle 118, helix angle: normal, web thickness: standard, tolerance of diameter: h8, tolerance of shank: -0.01/0.08. Manufactured to BS328. Fracturing of the drill shank may occur if it is used for any other purpose or if extreme pressure is exerted on the drill.

For all dimensional specifications please refer to our catalogue.

Inch

All sizes will fit into a 13mm/1/2" chuck.

Sherwood Ground Flute Jobber Drill Sets HSS

Sherwood Jobber drills are general-purpose drills for steels, cast steel, grey cast iron, malleable cast iron, nickel brass, aluminium alloy and graphite.

With precision-ground flutes and 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.

Supplied in indexing metal cases. 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.

Ground Flute Jobber 13 Piece Drill Set HSS - Inch

Contents: 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64" and 1/4".

Sherwood Drills Taper Shank HSS

Suitable for single and multi-spindle drilling machines. The taper shank being the engineering industries recognised standard and most widely used method for holding and driving cutting tools. Manufactured to BS328;Part 1:1986, DIN345RN, DIN343RN.

For all dimensional specifications please refer to our catalogue.

Series T100 (MT5) - Metric

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

Sherwood Long Series Drills HSS

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 BS328:Part 1:1986, DIN340RN, ISO494. Bright finish; drills are supplied in the as-ground condition and such tools are used generally in the machining of non-ferrous materials.

For all dimensional specifications please refer to our catalogue.

Series L100 - Metric

Bright finish.

Sherwood Extra Length Drills Taper Shank 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 8-20, tolerance of diameter: h8. Point angle to BS328 PTI 1986.

For all dimensional specifications please refer to our catalogue.

1 Morse Taper - Metric

Sherwood Quick-Spiral Extra Length Vent Drills HSS

Sherwood HSS quick spiral extra length vent drills are designed for drilling the initial vent hole in aluminium tyre moulds, and are also used in the tyre industry for clean-out work post production where the High Helix and extra reach are ideal for the efficient evacuation of waste rubber. 118 Point angle. Manufactured to Works standard.

For all dimensional specifications please refer to our catalogue.

Quick-Spiral Extra Length Vent Drill HSS

Sherwood Extra Length Drills Taper Shank 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 8-20, tolerance of diameter: h8. Point angle to BS328 PTI 1986.

For all dimensional specifications please refer to our catalogue.

1 Morse Taper - 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

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