Somta Series 1NA – 4.76 mm (No. 2) HSS Centre Drill

Somta Series 1NA – 4.76 mm (No. 2) HSS Centre Drill | 1NA0002 The SOMTA 1NA0002 is a precision High-Speed Steel Centre Drill (No. 2) designed to produce accurate, concentric...
$17.00
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$17.00
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Vendor: SOMTA
SKU: 1NA0002
Availability: In Stock
Subtotal: $17.00
Somta Series 1NA – 4.76 mm (No. 2) HSS Centre Drill

Somta Series 1NA – 4.76 mm (No. 2) HSS Centre Drill

$0.00 $17.00

Somta Series 1NA – 4.76 mm (No. 2) HSS Centre Drill

$0.00 $17.00

Somta Series 1NA – 4.76 mm (No. 2) HSS Centre Drill | 1NA0002

The SOMTA 1NA0002 is a precision High-Speed Steel Centre Drill (No. 2) designed to produce accurate, concentric centre holes prior to turning or grinding operations. Manufactured to American Standard Form A (60°), this tool delivers optimum alignment accuracy, surface finish, and reliability in a range of metalworking applications. Its rigid HSS construction provides excellent strength, wear resistance, and edge retention for extended tool life under continuous use.

Engineered for precision machinists, the Somta 1NA Series centre drills feature finely ground flutes for clean chip evacuation and a bright finish that reduces friction and burr formation. Ideal for use on steel, cast iron, and non-ferrous materials where true centre alignment and hole quality are critical.

Key Features & Benefits

  • High-Speed Steel (HSS) – Provides superior toughness and heat resistance for high-speed machining.
  • Form A 60° Included Angle – Complies with American Standard geometry for accurate pilot and countersink formation.
  • Bright Finish – Enhances surface quality and minimises built-up edge formation.
  • Precision-Ground Flutes – Ensures smooth chip removal and consistent hole accuracy.
  • Short, Rigid Design – Improves stability and reduces deflection during high-speed operations.

Technical Specifications

  • Part No: 1NA0002
  • Series: 1NA (Centre Drills – American Standard Form A)
  • Tool Type: HSS Centre Drill No. 2
  • Pilot Diameter (d): 1.98 mm
  • Body Diameter (d₁): 4.76 mm (≈ 3/16″)
  • Web Length (l₂): 2.0 mm
  • Flute Length (l₁): 48 mm
  • Point Angle: 60° Included Angle (Form A)
  • Finish: Bright Finish
  • Material: High-Speed Steel (HSS)
  • Suited Materials: General Engineering Steels, Cast Irons, and Non-Ferrous Metals

Why Choose SOMTA Cutting Tools?

  • Precision Manufacturing – Produced to ANSI standards for dimensional accuracy and repeatability.
  • Reliable Performance – Maintains concentricity and smooth hole geometry throughout use.
  • Industrial Durability – Hardened HSS construction ensures long service life in high-load applications.
  • Trusted Quality – Backed by SOMTA’s proven manufacturing excellence since 1954.

The SOMTA 1NA0002 delivers reliable performance, precise alignment, and excellent finish quality in centre drilling operations. Available through Twin Eagle Imports — your trusted partner for premium industrial tooling solutions and machining supplies.

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Shipping

Shipping within Australia is free. Please note delivery times to remote and very remote (Zone 3 and 4 postcodes) destinations around Australia will have longer delivery times due to postal processing and the distance to destination. Our handling time will remain as next day dispatch on all orders placed before 8am, ensuring you receive your item as quickly as possible.

AU Post is used for all shipping unless very large items require a courier. Tracking will be provided on all purchases.

Returns

Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

Several types of goods are exempt from being returned. Perishable goods such as food, flowers, newspapers or magazines cannot be returned. We also do not accept products that are intimate or sanitary goods, hazardous materials, or flammable liquids or gases.

Additional non-returnable items

Gift cards
Downloadable software products
Some health and personal care items

To complete your return, we require a receipt or proof of purchase.

Please do not send your purchase back to the manufacturer. Any item not in its original condition, is damaged or missing parts for reasons not due to our error
Any item that is returned more than 30 days after delivery

Refunds (if applicable)

Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.

Late or missing refunds (if applicable)

If you haven’t received a refund yet, first check your bank account again. Then contact your credit card company, it may take some time before your refund is officially posted. Next contact your bank. There is often some processing time before a refund is posted. If you’ve done all of this and you still have not received your refund yet, please contact us at mailto:accounts@twineagleimports.com.au.

Sale items (if applicable)

Only regular priced items may be refunded, unfortunately sale items cannot be refunded.

Exchanges (if applicable)

We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at mailto:accounts@twineagleimports.com.au and send your item to: Twin Eagle Imports PTY LTD, 198 spinebill dr, greenbank QLD 4124, Australia.

Gifts

If the item was marked as a gift when purchased and shipped directly to you, you’ll receive a gift credit for the value of your return. Once the returned item is received, a gift certificate will be mailed to you.

If the item wasn’t marked as a gift when purchased, or the gift giver had the order shipped to themselves to give to you later, we will send a refund to the gift giver and he will find out about your return.

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