Sherwood® Printed Circuit Board Drills Solid Carbide

Suitable for drilling through printed circuit boards. Shank diameter: 3.175mm, 38mm overall length. Manufactured to DIN1899.

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

SwissTech Jobber Drills HSS TiN Tipped

Bright body with TiN coating on working part. For drilling in steel, cast steel alloyed and non alloyed, grey cast iron, graphite and malleable cast iron. Point angle: 118. Helix angle: Normal. Web thickness: Standard. Relief angle: Normal. Tolerance of diameter: h8. Tolerance of shank: f11. Manufactured to DIN338.

Sherwood Fine Pitch Ripper Cutters Threaded Shank HSS-EV

Multi flute ripper cutters. Manufactured from sintered HSS-EV extra vanadium steel. Knuckle form, h8 tolerance, standard length. Dimensions to DIN 1835D.

Regular Series

Sherwood Woodruff Cutters Threaded Shank HSS

12mm/1/2" Shank Diameter
Produces closed slots for woodruff keys to DIN 6888. For milling structural, carburizing and heat treated steel up to 900N/mm2. Manufactured to BS 122 : Part 4 : 1980. Made to DIN 850. Shank to DIN 1835/D.

Metric Limits of Tolerances:
Diameter +0.000 -0.127.
Width
2 up to 4 - 0.014 -0.028.
4 up to 7 - 0.020 -0.038.
7mm up - 0.025 -0.047.

Inch Limits of Tolerance:
Diameter +0.015" -0.100".
Width +0.000" -0.001".

For all dimensional specifications please refer to our catalogue.

Inch

Guhring HSS-E 'Green Ring' Taps

Manufactured from HSS-E steel to DIN 371/6. Spiral flute for blind holes. Taper lead to DIN form B (3.5 x P to 5.5 x P). Tapping tolerance to 6HX.

Guhring Machine Chucking Reamers Intermediate Diameter HSS-E

Available in diameters ranging from 2mm to 10mm in increments of 0.01mm. Made from HSS-E steel with a bright finish, left hand spiral flute. For all ferrous and non-ferrous metals and hard and soft plastics. For use on CNC machines, producing high quality reamed holes. Manufactured to DIN 212 and DIN 2172 section 1.

Shank diameter equals cutting diameter - 0.025mm.
dia 2.00 - dia 2.65 / dia 2.66 - dia 10.00 H9.

Diameter Tolerances (to H7)
Up to 5.5mm: plus 0.004mm minus 0.000mm
Above 5.5mm: plus 0.005mm minus 0.000mm.

Code numbers are determined by the nominal diameter. Delete the decimal point; create a four figure number by preceding the figures with a zero, if required. All codes finish with the letter A, i.e. 3.60 becomes 0360A.

For all technical specifications please refer to our catalogue.

EX10 DIN 374 Spiral Flute Metric Fine Taps

Bright Finish

Marlco Litecut Keyway Push Broaches

Manufactured to BS4235;Part 1:1972 (normal fit Js9) and DIN6885 for Metric sizes, and BS46;Part 1:1958(1985) for Inch sizes. Precision made from high speed steel and simple to use with minimal set-up. The cutting geometry will suit most materials. Push broaches are designed for use in hand-operated or hydraulic mandrel presses, depending on load. Load per tooth, given in the tables, is based on a UTS of 400N/mm2 (approx. 25 tons/sq in). For other materials, adjust accordingly. It is important that broaches are reground when blunt and before damage occurs to the teeth. The use of cutting fluid is essential, and for steel, an oil with high pressure additives is recommended. Keyways from 2mm to 25mm width and bore diameters of 6mm to 95mm are possible. Both parallel and taper keyways can be cut by using the appropriate guide. Broach style L2 and L2M require the use of an extension shank which should be ordered separately. The shims specified for standard depth keyways can be adjusted to suit particular applications. Parallel broaches are listed and supplied as standard. Broaches for taper keyways are available to order.

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

Litecut Keyway Push Broach

Series: L2. Nominal size: 5/16". Actual size (tolerance): 0.312/0.313. Body width: 9/16". Broach length: 12". Length of cut: 1.25" (min), 4.13" (max). Tooth pitch: 0.63. Depth of keyway on centre line: 0.145. No. of passes: 4. Number of shims x thickness required: 2 x 0.05, 1 x0.03. Load per tooth: 200. Weight: 0.72kg.

Sherwood Die Nuts

Sherwood ground thread die nuts are suitable for repairing damaged or crossed threads and clearing swarf from threads. When using a die nut (on an existing thread) it is not necessary to apply the same level of precise initial alignment required to form a new thread (i.e. with a die) as the nut will follow the existing threads. They are supplied as hexagon drive allowing them to be turned by a standard spanner or adjustable wrench without the need for a special stock.

Conform to: ISO 529

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

Die Nuts Metric Coarse Ground Thread HSS

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