Send a part number, a photo, or a whole BOM — we supply it and stand behind it. EXW Singapore — collect from our office.

3G Electric
MICRO SR-312-12 Fractional-Inch Carbide Drill Bit Blank - Fractional-Inch Carbide Drill Bit Blanks
MICROFractional-Inch Carbide Drill Bit Blanks

MICRO SR-312-12 Fractional-Inch Carbide Drill Bit Blank

The MICRO 100 SR-312-12 is a fractional-inch carbide drill bit blank with a 5/16 in (0.3125) diameter and 12 in overall length. It features a diameter tolerance of -0.0001/-0.0002 in. This round blank is designed for…

SKU 3G-OTH-196293

Also listed as: SR31212 · SR 312 12

Brand
MICRO
Item
SR-312-12 Fractional-Inch Carbide Drill Bit Blank
Part Number
SR-312-12
Category
Fractional-Inch Carbide Drill Bit Blanks
Available to Order
Also known as:SR-312-12MICRO
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
EXW Singapore
Collect or forward from our office
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

Technical Specifications

MICRO
Manufacturer Part Number
SR-312-12

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

MICRO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The MICRO 100 SR-312-12 is a fractional-inch carbide drill bit blank with a 5/16 in (0.3125) diameter and 12 in overall length. It features a diameter tolerance of -0.0001/-0.0002 in. This round blank is designed for use in custom tool grinding applications.

Frequently Asked Questions

What is the MICRO 100 SR-312-12 round blank used for?

The MICRO 100 SR-312-12 is a fractional-inch carbide drill bit blank used for custom tool grinding applications. It allows machinists and toolmakers to create specialized drills, reamers, or end mills by grinding the blank to desired geometries. This MICRO 100 blank is suitable for precision metalworking and industrial manufacturing.

What are the specifications of the MICRO 100 SR-312-12?

The MICRO 100 SR-312-12 is a round carbide blank with a diameter of 5/16 in (0.3125 in) and an overall length of 12 in. Its diameter tolerance is -0.0001/-0.0002 in. The manufacturer part number is SR-312-12, and it is made by MICRO 100. It is designed for custom tool grinding.

Where to buy the MICRO 100 SR-312-12 worldwide?

You can source the MICRO 100 SR-312-12 worldwide through 3G Electric, a global industrial equipment distributor established in 1990. We handle full logistics, customs clearance, and delivery to your location. Contact 3G Electric for availability and pricing on this MICRO 100 carbide blank.

How to select the right MICRO 100 round blank for custom tool grinding?

To select the right MICRO 100 round blank, match the diameter and length to your desired finished tool dimensions. The SR-312-12 offers a 5/16 in diameter and 12 in length with tight tolerances. Consider the material being machined and required tool geometry. MICRO 100 blanks are designed for precision grinding in industrial applications.

Used in

Common applications for MICRO
General metalworking — Micro 100 AR-style brazed-tip lathe tool bits for turning and facing with positive cutting action.
Job shop machining — Micro 100 BR-style tool bits with side cutting edge angle for higher feed rates in turning operations.
CNC lathe operations — Micro 100 C-style single-point tool bits for general-purpose turning, facing, and boring.
Manual lathe work — Micro 100 D-style multi-functional tool bits for turning, facing, and boring on manual lathes.
Heavy machining — Micro 100 GR-style tool bits with 3/4 in shank width for increased rigidity in single-point turning.
Maintenance and repair — Micro 100 E-style brazed-tip tool bits for boring and facing in maintenance departments.
Not sure this is the right part? Photo-identify it→

MICRO Products

3G Electric supplies MICRO fractional-inch carbide drill bit blanks. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

More from MICRO

View all MICRO parts →

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first