General

Printed circuit boards are usually made of fibreglass (FR4), which due to being highly abrasive and given the many hundreds or thousands of holes on modern circuit boards, requires the use of specialist drill bits, .

Although more brittle than conventional high speed steel (HSS) drills, the tungsten carbide bits that we stock are designed specifically for PCB drilling. These drill bits will give superior hole wall quality, minimize burr formation, and last 10x longer than a HSS bit. Tungsten carbide bits are easier to break than HSS bits and must be handled carefully.

We reccomend that drill bits are fitted with depth setting rings. This will allow you to set the plunge depth stop on your drill press to a single value that will work for all bit diameters. We stock PCB Carbide Micro Drills from 0.2mm through to 3mm both with and without depth rings.

Our drill descriptions describe the flute diameter and the flute length. Other dimensions are standard accross the range. When ordering drills with depth rings, you may specify the depth ring position to suite your requirments.

The list of available sizes

0.4mm x 7mm

equates to a drill of D=0.4mm and L=7.0mm

2.4 x 10.5

equates to a drill of D=2.4mm and L=10.5mm

Please note: we stock ONLY new drills , we DO NOT offer reground bits. Though we primarily stock drills for PCB manufacture, Drills are suitable for drilling Aluminium, Brass, Bronze, Cast Iron, Copper, GRP, PCB, Stainless and Hardened Steels etc. Ideal for model engineering, electronics and jewellery making, etc.

How to use

For longest life PCB drills should be run at a minimum rotation speed of 20,000 RPM and upto 100,000 RPM. Running at lower speeds will result in a higher rates of wear and excessive run out on small drills.

We reccomend that drill bits are fitted with depth setting rings. This will allow you to set the plunge depth stop on your drill press to a single value that will work for all bit diameters.

For example photos of the tool's please check our gallery by clicking the button below:

Safety Warning, Drilling and Milling

Dust and mist created by drilling, milling and other activities may chemicals and residue from the materials and tools that could cause adverse health effects

POTENTIAL HEALTH HAZARDS

• SKIN: Dust may cause moderate skin irritation.
• EYES: Dust may cause moderate eye irritation. Fumes may irritate eyes.
• INHALATION: Fiberous glass dust may be released from the fiberglass cloth substrate when machined.

REDUCE THE RISK

Risk from these exposures varies depending on how often this type of work is performed and the amount of individual exposure. To reduce the amount of exposure to harmful chemicals and materials:

• Work in a well ventilated area
• Avoid breathing in dust or mist
• Use approved methods of dust and mist control
• Avoid prolonged skin contact with dust or mist
• Consult the power tool manual for proper use of the power tool and safety equipment requirements.
• Use approved safety and protective equipment: Gloves, shields, dust masks, protective clothing, tool guards, etc.

Feature Overview

• Micro-drills have diameters ranging from 0.04 to 0.1 millimetres.
• PCB drills with a diameter of up to 6.5 millimetres are also available
• Highest quality of very fine-grained carbide types from leading manufacturers guarantee the drills minimum wear and a long service life.
• Suitable for machining multilayer circuit boards from high-Tg or BT resins, or for standard circuit boards.

• Specialist 0.01 millimetre helix is as fine as the antenna of an aphid and is among the smallest drills in the world.

PCB Drill Sizes Available

Medium Drills: Medium Drill 35 Deg 0.20 mm D x 5.00 mm L Medium Drill 35 Deg 0.30 mm D x 7.00 mm L Medium Drill 35 Deg 0.40 mm D x 7.00 mm L Medium Drill 35 Deg 0.50 mm D x 8.50 mm L Medium Drill 35 Deg 0.60 mm D x 8.50 mm L Medium Drill 35 Deg 0.70 mm D x 10.50 mm L Medium Drill 35 Deg 0.80 mm D x 10.50 mm L Straight Drill 30 Deg 0.90 mm D x 10.50 mm L Straight Drill 30 Deg 1.00 mm D x 10.50 mm L Straight Drill 30 Deg 1.10 mm D x 10.50 mm L Straight Drill 30 Deg 1.20 mm D x 10.50 mm L Straight Drill 30 Deg 1.30 mm D x 10.50 mm L Straight Drill 30 Deg 1.40 mm D x 10.50 mm L Straight Drill 30 Deg 1.50 mm D x 10.50 mm L Straight Drill 30 Deg 1.60 mm D x 10.50 mm L Straight Drill 30 Deg 1.70 mm D x 10.50 mm L Straight Drill 30 Deg 1.80 mm D x 10.50 mm L Straight Drill 30 Deg 1.90 mm D x 10.50 mm L Straight Drill 30 Deg 2.00 mm D x 10.50 mm L Straight Drill 30 Deg 2.10 mm D x 10.50 mm L Straight Drill 30 Deg 2.20 mm D x 10.50 mm L Straight Drill 30 Deg 2.30 mm D x 10.50 mm L Straight Drill 30 Deg 2.40 mm D x 10.50 mm L Straight Drill 30 Deg 2.50 mm D x 10.50 mm L Straight Drill 30 Deg 2.95 mm D x 10.50 mm L Straight Drill 30 Deg 3.00 mm D x 10.50 mm L

Micro Drills: Micro Drill 38 Deg 0.10 mm D x 1.7 mm L Micro Drill 38 Deg 0.15 mm D x 2.0 mm L Micro Drill 38 Deg 0.20 mm D x 3.0 mm L Micro Drill 38 Deg 0.25 mm D x 4.0 mm L Standard Drills: Standard Drill 0.30 mm - 3.10 mm Extended Flute Drills: STX Series Drills Extended Flute Drill  0.30 mm - 0.65 mm Undercut UC/UV and  UM Series Drill Undercut Drills Extended Flute Drill  0.30 mm - 1.60  mm Slotting Drills SX 24 Series Drills Slotting Drill 0.50 mm - 3.18 mm Inverse Diameter Drills ID30 Series Drills Inverse Diameter Drill 3.20 mm - 6.50 mm