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MICRO 100 Boring Bar: Reverse Boring, 5/16 in Shank Dia., AlTiN - Machining
MICROMachining

MICRO 100 Boring Bar: Reverse Boring, 5/16 in Shank Dia., AlTiN

The MICRO 100 Boring Bar: Reverse Boring (MPN QRB-230750X) is a machining tool with a 5/16 in shank diameter, featuring an AlTiN coating and a 0.0738 in center to cutting tip. 3G Electric interprets this demand and…

SKU 3G-OTH-245383

Also listed as: QRB230750X · QRB 230750X

Brand
MICRO
Item
100 Boring Bar: Reverse Boring, 5/16 in Shank Dia., AlTiN
Category
Machining
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

MICRO
Manufacturer Part Number
QRB-230750X
Type
AlTiN, 0.0738 in Center to Cutting Tip
Shank Dia.
5/16 in

Technical Documents

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

Product Description

The MICRO 100 Boring Bar: Reverse Boring (MPN QRB-230750X) is a machining tool with a 5/16 in shank diameter, featuring an AlTiN coating and a 0.0738 in center to cutting tip. 3G Electric interprets this demand and sources it across 14 industrial departments, with specialist depth in machining and controls to support your procurement.

Frequently Asked Questions

What is the MICRO 100 QRB-230750X boring bar used for?

The MICRO 100 QRB-230750X is a reverse boring bar used in precision machining to create internal diameters and back-face features. Its AlTiN coating reduces friction and heat, making it suitable for hard metals and high-speed operations in toolrooms and production shops.

What are the specifications of the MICRO 100 QRB-230750X boring bar?

This boring bar has a 5/16 in shank diameter, a 0.0738 in center-to-cutting-tip offset, and an AlTiN coating. The manufacturer part number is QRB-230750X. It is designed for reverse boring applications where access to the back of a bore is required.

Where to buy the MICRO 100 QRB-230750X boring bar worldwide?

3G Electric supplies the MICRO 100 QRB-230750X boring bar worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on this precision machining tool.

How to select the correct MICRO 100 boring bar for a lathe?

Select a MICRO 100 boring bar by matching the shank diameter to your tool holder's bore size and the center-to-cutting-tip offset to your required bore depth. The AlTiN coating on the QRB-230750X suits high-speed machining of steels and alloys. Always verify the part number against your application.

Used in

Common applications for MICRO
Aerospace machining — MICRO 100 SCLCR toolholders for turning titanium alloys
Automotive production — MICRO 100 SR series blanks for custom drill bits in engine blocks
Plastic component fabrication — MICRO 100 SFL downcut router bits for acrylic sheet cutting
Aluminum extrusion finishing — MICRO 100 SFA upcut router bits for deburring profiles
Mold and die making — MICRO 100 SCMCN toolholders for profiling hardened steel cavities
Composite panel trimming — MICRO 100 SFPM spiral router bits for carbon fiber laminates

MICRO Products

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

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Compatible alternatives & equivalents

Cross-referenced by specification & description
MICRO 100 Boring Bar: Reverse Boring, 5/16 in Shank Dia., AlTiN, 0.0738 in Center to Cutting Tip (MPN QRB-230500X)
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MICRO 100 Boring Bar: Reverse Boring, 5/16 in Shank Dia., AlTiN, 0.0738 in Center to Cutting Tip (MPN QRB-230500X)
MICRO 100 Boring Bar: Reverse Boring, 5/16 in Shank Dia., AlTiN, 0.0738 in Center to Cutting Tip (MPN QRB-2301250X)
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MICRO 100 Boring Bar: Reverse Boring, 5/16 in Shank Dia., AlTiN, 0.0738 in Center to Cutting Tip (MPN QRB-2301250X)
MICRO 100 Boring Bar: Reverse Boring, 5/16 in Shank Dia., AlTiN, 0.0738 in Center to Cutting Tip (MPN QRB-2301000X)
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MICRO 100 Boring Bar: Reverse Boring, 5/16 in Shank Dia., AlTiN, 0.0738 in Center to Cutting Tip (MPN QRB-2301000X)
MICRO 100 Boring Bar: Reverse Boring, 5/16 in Shank Dia., AlTiN, 0.1438 in Center to Cutting Tip (MPN QRB-3001250X)
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MICRO 100 Boring Bar: Reverse Boring, 5/16 in Shank Dia., AlTiN, 0.1438 in Center to Cutting Tip (MPN QRB-3001250X)
MICRO 100 Boring Bar: Reverse Boring, 5/16 in Shank Dia., AlTiN, 0.1438 in Center to Cutting Tip (MPN QRB-300500X)
MICRO
MICRO 100 Boring Bar: Reverse Boring, 5/16 in Shank Dia., AlTiN, 0.1438 in Center to Cutting Tip (MPN QRB-300500X)
MICRO 100 Boring Bar: Reverse Boring, 5/16 in Shank Dia., AlTiN, 0.1438 in Center to Cutting Tip (MPN QRB-3001000X)
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MICRO 100 Boring Bar: Reverse Boring, 5/16 in Shank Dia., AlTiN, 0.1438 in Center to Cutting Tip (MPN QRB-3001000X)

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