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Prices are current as of Sunday, 16/12/2018.
Prices are GST exclusive. Tax is added at checkout.

$43.00
Availability: Backorder
Product Code: T05-234

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Dumont tweezers are known all over the world for their high quality, durability and detailed engineering.

When selecting Dumont tweezers, reference should be made to the Dumont steel used, the tweezer style, and grade of the tip finish. In pointed tweezers especially, this refers to the fineness of the tip. (Biology Grade tweezers are recommended for high-precision work under a microscope)

Code Material Grade Description Length Width and Thickness
T05-234 Inox 02, epoxy-coated Electronic Straight, fine tips 110mm 0.10 x 0.06mm
T05-711 Titanium, polished HP Straight, very fine tips 110mm 0.10 x 0.06mm
T05-811 Inox 08, polished HP Straight, very fine tips 110mm 0.10 x 0.06mm
T05-822 Inox 08, matt Biology Straight, super fine tips 110mm 0.05 x 0.01mm
T05-912 Dumostar, matt HP Straight, very fine tips 110mm 0.10 x 0.06mm
T05-922 Dumostar, matt Biology Straight, super fine tips 110mm 0.05 x 0.01mm

Material

Dumoxel® is non-magnetic and strongly anti-corrosive. It is softer than Inox.

Inox is quality stainless steel. It is magnetic which can be a problem when handling nickel grids. Inox is less acid resistant than Dumoxel or Dumostar. Unless the special properties of Dumoxel or Dumostar are required, Inox tweezers are excellent and most Dumont tweezers sold are made from Inox steel.

Inox 02 is standard stainless steel.

Inox 08 is medical grade stainless steel and can be autoclaved at 180°C.

Dumostar is a cobalt rich stainless steel alloy with outstanding characteristics and unmatched durability. It is non-magnetic. The steel is resistant to fatigue; the tips never lose their elasticity. The modulus of elasticity is 210'000 MPA. The hardness is 720 Vickers/ 61 Rockwell. The hardness of the tips is progressive and peaks in the employment zone. Dumostar's resistance is quite superior to the best of stainless steels. It has very good resistance to corrosion in: sea water, HCl, H3PO4, HNO3, H2SO4 and neutral and alkaline environments.

Carbon steel is an extremely hard alloy (>59 HRC) composed of C, Mn and Si. While carbon ensures strong tips, it will nevertheless rust easily. This alloy is magnetic and cannot be sterilised.

Titanium is an alloy composed of C, Fe, O, H, N and Ti. It is totally resistant to corrosion from nitric acid, chloride, sea water and similar. This alloy is not as hard as Inox 08 but is 40% lighter and more flexible. Titanium is 100% anti-magnetic and can handle temperatures up to 430°C.

Material
Hardness (Approximate)

Flexible

Anti-Magnetic

Anti-Corrosive

Anti-Rust

Heat Resistance

Autoclave

Composition
Carbon Steel 59 HRC Hardest Alloy
No No No   No C, Mn,Si
Dumostar
210'000 MPA 100% Excellent Yes 400°C 500°C C, Cr, Ni, Mo, Mn, Co, Ni, Si
Inox 02 (Standard Stainless Steel)

No Good
400°C No C, Mn,Cr,Si
Inox 08 (medical stainless steel) 169 Vickers / 85 Rockwell B
No Excellent Yes 400°C 180°C C, Mn, Cr, Mo,V
Dumoxel

95% Excellent Yes 400°C 270°C C, Cr, Ni, Mo, Cu
Antimagnetic Steel

80% Good Yes 400°C 270°C C, Ni, Mo, Cr
Titanium Least Hard Yes 100% Excellent Yes High 430°C C, Fe, O, H, N and Ti

Grade (Tip Finish)

Biology has the finest tips. The straight pointed tweezers are finer than curved.

High precision is most commonly used in EM work.

Electronic are not as fine as high precision; they are available in Inox only. For large tweezers, a more robust tip is no disadvantage and electronic grade is good value.

Other features

Epoxy-coated Except for the tips, some tweezers are covered with a durable blue epoxy coating, giving extra thermal and electric insulation. The epoxy can be used up to 120 degrees C. The intact coating is 220V safe and exceptionally resistant to solvents, acids and saline solutions, but not to strong caustics.

AC are anti-capillary tip tweezers; they are only available in Biology grade. Though easily damaged, these tweezers defy capillary action and they are favoured by some users for staining operations.

N denotes self-closing.

Medical grade tweezers usually have grooved finger grips and a particularly fine surface finish. Some types are mirror-polished, but most types are supplied with a fine matt finish. The medical finish is available in just a few styles.

Shipping

Orders with items in stock are packed within 24 hours. We ship with our best choice of courier, depending on goods ordered and shipping address provided.

Location

Standard delivery

Express delivery

Townsville/Local

Next day

N/A

Queensland

2-3 business days

N/A

NSW

4-10 business days

2-3 business days

SA/Tas/Vic/WA

6-14 business days

2-3 business days

Overseas

N/A

5-14 business days

*Note: Delivery times are as provided by our carriers and are estimates only. Delays may occur during peak periods, and due to factors outside the carriers' control.

Standard shipping is $15 in Australia (free on orders over $200). Add $5 to ship Express (under 2kg only)

Pickup

Order online and collect from our warehouse in Townsville.

Location

Freight Charge

Ready for collection

11 Carlton Street, Kirwan

$0

Once invoice has been emailed
(Less than 1 business day)



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