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 3 x D - Metric

Guhring GV120 Heavy Duty Stub Drills HSS-Co

Manufactured to Type GV120 DIN1897.

Series 329

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

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

Walter Titex Jobber Drills HSS TiALN Coated

High performance drill with extremely good chip evacuation, especially to be utilised on lathes, automatics and CNC equipment.
Preferably for long chipping materials such as steels up to 1300N/mm2, including stainless steels (300 series), Aluminium, copper alloys and brass.
Coated with TiALN Futura for high machining data and exceptional tool life. Also suitable for dry machining of steel materials. 130 Point Geometry. Manufactured
to DIN 338 & BS 328.

Series A1249 TFL - Metric

Dormer Jobber Drills TiN Tipped

Dormer's A002 Jobber Drill has a standard helix, it is right hand and has wider flutes for efficient chip removal. 118 point geometry. TiN coated on the tip for high wear resistance, lower friction and allows increased cutting speeds. Suitable for general-purpose drilling.
The Dormer A002 Jobber drill delivers the following features and benefits:
Improved web design optimises strength and rigidity and increases feed capability
Ground wide flutes allow for efficient chip evacuation
Optimised throughout the helix range for greater rigidity
Bright body improves application on ductile materials
Titanium Nitride coating focused on the working surfaces to resist flank and crater wear, and to provide low friction and increased performance
Special Dormer P.S. Point increases ease of penetration, improves hole size and provides accurate centering
General purpose engineering drills
Manufactured to BS328:Part 1:1986.

Series A002

Guhring Stub Drills HSS

Ideally suited for portable drill applications where the shorter flute and stub length offer the extra rigidity normally associated with fixed drilling. Manufactured to BS328:Part 1:1986/DIN1897RN.

Series 223

A520 - HSS ADX TiN Coated Stub Drills

Designed for use where high productivity and accuracy are required. Unique flute geometry. 130° point angle. TiN coating for increased tool life & performance. Manufactured to DIN1897.

Guhring Long Series Stub Drills HSS TiN Coated

For the drilling of deeper holes and for use with drill bushings. For machining alloyed and unalloyed steel, cast steel, cast iron, German silver and graphite. Type N. Manufactured to DIN340.

For all dimensional specifications please refer to our catalogue.

Series 667 - Metric

Dormer Stub Drills HSS TiN Tip Coated

Designed for increased productivity and tool life compared to standard stub drills. TiN coating has been applied to 35%-50% of the flute length (dependent on drill diameter) to keep cost down and lower the cost per hole. The 135 split point is advantageous for the pre-drilling of rivets and for drilling in sheet metal. Suitable for drilling alloy steel, carbon steels, cast iron, titanium and aluminium. Manufactured to DIN1897, ANSI.

Series A022 Stub Drill HSS TiN Tip Coated - Metric