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MICRO 100 Boring Bar: Reverse Boring, 1/4 in Shank Dia., Bright (Uncoated) - Machining
MICROMachining

MICRO 100 Boring Bar: Reverse Boring, 1/4 in Shank Dia., Bright (Uncoated)

The MICRO 100 QRB-180500 is a reverse boring bar for machining, featuring a 1/4 in shank diameter, bright (uncoated) finish, and right-hand orientation. 3G Electric interprets customer demand and delivers this…

SKU 3G-OTH-247421

Also listed as: QRB180500 · QRB 180500

Brand
MICRO
Item
100 Boring Bar: Reverse Boring, 1/4 in Shank Dia., Bright
Category
Machining
Available to Order
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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-180500
Type
Bright (Uncoated), Right Hand
Shank Dia.
1/4 in

Technical Documents

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

Product Description

The MICRO 100 QRB-180500 is a reverse boring bar for machining, featuring a 1/4 in shank diameter, bright (uncoated) finish, and right-hand orientation. 3G Electric interprets customer demand and delivers this genuine industrial tool across 14 departments—and far more—with specialist depth in combustion, pumps, and controls as a trust anchor.

Frequently Asked Questions

What is the MICRO 100 QRB-180500 boring bar used for?

The MICRO 100 QRB-180500 is a reverse boring bar designed for internal machining operations. It is used to create or finish bores, counterbores, and back-facing features in metal parts, commonly in toolrooms, mold making, and precision engineering. Its right-hand, bright uncoated geometry suits general-purpose cutting in ferrous and non-ferrous materials.

What are the specifications of the MICRO 100 QRB-180500 boring bar?

The MICRO 100 QRB-180500 is a reverse boring bar with a 1/4 in shank diameter. It features a bright (uncoated) finish and is right-hand cutting. The manufacturer part number is QRB-180500. This tool is designed for internal boring applications where the cutting action occurs on the reverse side of the bar.

Where to buy the MICRO 100 QRB-180500 boring bar worldwide?

You can source the MICRO 100 QRB-180500 boring bar through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply this MICRO 100 tool to procurement teams and engineers internationally.

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

To select the correct MICRO 100 boring bar, match the shank diameter to your toolholder (here 1/4 in). Choose right-hand or left-hand based on spindle rotation and feed direction. For reverse boring applications, the QRB-180500 is designed for back-facing or internal grooves. Always verify the workpiece material and required bore depth to ensure adequate reach and rigidity.

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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MICRO 100 Boring Bar: Reverse Boring, 1/4 in Shank Dia., Bright (Uncoated), Right Hand (MPN QRB-1801000)
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MICRO 100 Boring Bar: Reverse Boring, 1/4 in Shank Dia., Bright (Uncoated), Right Hand (MPN QRB-2001250)
MICRO 100 Boring Bar: Reverse Boring, 1/4 in Shank Dia., Bright (Uncoated), Right Hand (MPN QRB-200750)
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MICRO 100 Boring Bar: Reverse Boring, 1/2 in Shank Dia., Bright (Uncoated), Right Hand (MPN QRB-4901500)

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