Dormer Long Series Jobber Drills HSS

General-purpose high speed steel long series drills for drilling holes up to 6 x diameter. Manufactured to DIN340. Point angle: 118.

For all dimensional specifications please refer to our catalogue.

Series A110 - Metric

Dormer Stub Drills

The A120 HSS stub drill from Dormer has a standard helix right hand spiral. The rigidity of these Dormer stub drill bits allow them to be used in portable drills, turret and automatic lathes.

Series A120 Stub Drill HSS - Metric

Dormer Heavy Duty Drills HSS-Co 8%

Drills up to 4 x diameter. Point angle: 135. Manufactured to BS 328, DIN 338.

Series A777 - Metric

Dormer 2 Flute Slot Drills Threaded Shank HSS

Used for milling keyways and slots in one unit. Bright finish. Flute type: 30 helix. Manufactured to BS 122: Part 4: 1980.
Material:
XS1 HSS powder metallurgy steel. This provides a finer and more consistent grain structure than HSCo resulting in a tougher product able to more easily withstand the shock load and intermittent cutting associated with milling operations. Tool life and wear resistance, exceeds standard HSS and is comparable to HSCo cutters. Superior edge strength and rigidity, resulting in improved surface finish and slot consistency equal to and in some cases better than HSCo. A productivity increase of around 40% over existing HSS cutters. Flute and overall lengths: to BS122/4.
Finish: bronze finish: provides a uniform structure and hardness at the tool surface, whilst also aiding tool identification.

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

Short Series C191 - Inch

Dormer Stub Drills

A921
High productivity "one-hit" drilling to 3xD. Excellent performance across a wide range of materials. Parabolic flute design promotes constant chip flow. Alcrona Top coating for extended tool life
Size Range: 2.5-16.0mm. Manufactured to BS 323, DIN1897, ansi.

Dormer 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 A100

EP00 TiN DIN 371 Spiral Point Metric Taps

Titanium Nitride Finish
Tolerance: 6H

Dormer Metric Coarse HSS Ground Thread Taps

Series E500. Comply with IS529.

Taper, Second and Plug Taps (Set of 3 - Straight Flute)

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.

Dormer Stub Drills

A921
High productivity "one-hit" drilling to 3xD. Excellent performance across a wide range of materials. Parabolic flute design promotes constant chip flow. Alcrona Top coating for extended tool life
Size Range: 2.5-16.0mm. Manufactured to BS 323, DIN1897, ansi.

A921 HSCO Stub Drills

A9210
Excellent for: Carbon/alloy steels, stainless and cast iron
Good for: Titanium, nickel and copper