SwissTech Production Drills Solid Carbide Q-Coat

SwissTech? Q-Coated carbide drills are for drilling into general steel, cast steel, cast iron, chilled cast iron, malleable cast iron, non-ferrous heavy and light metal, and abrasive plastic. They are self-centering with a point angle: 140.

Tolerance of diameter: m7.
tolerance of shank: h6.
Manufactured to DIN 6537.

Solid Carbide Drill 5 x D - Metric

SwissTech Heavy Duty Drills HSS-Co 8% Cobalt TiN Coated

Heavy-duty drill used to drill steels with a tensile strength up to 1,400 N/mm2. Stainless steels, heat and acid resistant steels and phosphor bronze. TiN coating provides longer tool life. Point angle: 135. Helix angle: Normal. Web thickness: Strengthened. Relief angle: Normal. Tolerance of diameter: h8. Supply unit. All diameters - 1 pce. Manufactured to DIN338RN.

Series 1033 - Metric

SwissTech Long Series Heavy Duty Drills HSS-Co 8% Cobalt

Heavy-duty drill used for deep holes in steels with a tensile strength up to 1,400 N/mm2. Stainless steels, heat and acid-resistant steels and hard bronze. Point angle: 135. Helix angle: Normal. Web thickness: Strengthened. Relief angle: Normal. Tolerance of diameter: h8. Tolerance of shank: f11. Manufactured to DIN340/BS328.

For all dimensional specifications please refer to our catalogue.

Series 4000 - Metric

Sherwood Stub Drills HSS

General-purpose drills for use on automatics and turret lathes. Suitable for drilling steels, cast iron, alloy steel and malleable cast iron. Point angle: 118, Helix angle: Normal, Web thickness: standard, Relief angle: 10-20, Tolerance of diameter: h8, Tolerance of shank: f11. Manufactured to BS328:Part 1:1986/DIN338.

Series S100

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

Dormer Solid Carbide Drills

The new Dormer MP-X range of multi-application carbide drills are cost effective, high performance drills that offer high productivity and supreme value for money. A wide range of materials can be machined using a minimum number of drills, to reduce stock-holding and associated costs.

MP-X Solid Carbide Drills

Dormer MP-X solid carbide drills deliver the following benefits and features:

Benefits
? Exceptional value with no compromise on quality.
? High productivity.
? Excellent hole quality.
? Availability.
? Reduced tooling costs.

Material
Micro-grain carbide for an excellent combination of hardness and toughness, resulting in high wear resistance and longer tool life.

Coating
Multi-layer titanium aluminum nitride (TiAlN) coating gives:
? Improved stability of cutting edges.
? Outstanding wear protection.
? High hardness properties.
? High toughness and oxidation stability
? Longer tool life and higher productivity.

Flute Geometry
Strong web design gives excellent crosssectional strength and facilitates chip evacuation.

Point Geometry
140 point angle with good centring capabilities and low thrust force design, suited to multiapplication drilling.

Multi-Application
Multi-application drilling across a wide range of materials, including:
? Carbon and alloy steels.
? Stainless steels.
? Cast iron.
? Aluminium.
? Magnesium alloys.
? Copper.

Suitable for Regrinding
The quality of design will allow consistently high levels of performance and tool life after the product is reconditioned, providing further cost reduction benefits.

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® Solid Carbide Drills

Sherwood Solid Carbide Stub Drills are suitable 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 Works Standard.

Solid Carbide Stub Drills

SwissTech Heavy Duty Stub Drills HSS-Co Cobalt

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. Point angle: 135. Helix angle: Normal. Web thickness: Strengthened. Tolerance of diameter: h8, Tolerance of shank: f11. Manufactured to DIN1897RN.

Series 2010

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