OSCARBIDE 3/4" x 10" Indexable Boring Bar,SCLCR Right-Hand

OSCARBIDE 3/4′′ x 10′′ Indexable Boring Bar (Right-Hand SCLCR)

Bore Deep, Bore True – 10′′ Reach, 3/4′′ Rigidity, Professional-Grade Precision.

Brand Name: OSCARBIDE

Shank Diameter: 3/4''

Overall Length: 10''

Cutting Direction: Right Hand

Negative 5 degree end & side cutting angle

Positive 80 degree diamond CCMT inserts

Carbide Insert : CCMT09T304(CCMT32.51)

Insert Screw: M4x8

Key: T15

Packing: 1 piece 3/4'' x 10'' RH SCLCR Indexable Boring Bar with carbide inserts CCMT09T304(CCMT32.5)

Size:

3/4′′ rigid steel shank – Maximum stability for its size – minimizes deflection for vibration-free boring in deep holes

10′′ overall length – Extended reach for larger workpieces and deep-hole applications

Right-hand SCLCR design – 80° diamond insert geometry with negative 5° end and side cutting angles

CCMT09T304 (CCMT32.5) inserts – 80° diamond shape, 2 indexable edges per insert

Solid carbide with multilayer coating – Long tool life, faster cutting speeds, low friction, and excellent wear resistance

TiN-coated inserts – Long-lasting durability, moisture resistance, and rust protection

What's in the Box

3/4"×10" SCLCR Right-Hand Boring Bar × 1

CCMT09T304 Carbide Inserts × 1(pre-installed where applicable)

Insert clamping screw and wrench (size varies by production batch)

Professional-Grade Internal Bore Accuracy—In One Pass

The OSCARBIDE SCLCR right-hand boring bar is built for that demand. The 80° diamond CCMT09T304 insert geometry reduces vibration by distributing cutting forces evenly—so you get consistent bore quality even when the workpiece isn't perfectly rigid. The multi-layer coating handles heat like armor, so the edge stays sharp when others soften.

What this delivers in your shop:

Mirror-finish bores – Achieve Ra0.4–0.8 in steel and stainless with the R0.4 nose radius and precision-ground chip breaker

Tolerances you can trust – Hold ±0.0005" (0.0127mm) over 500+ parts in low-carbon steel—verified in production runs

Interrupted cuts without drama – The 80° diamond shape absorbs impact, so you're not replacing inserts mid-run on cast iron or weldments

Set it and forget it – Negative rake geometry stabilizes the cut, so you dial in feed and speed once—no constant babysitting

Versatile Machining Tool

This indexable boring bar is a versatile machining tool designed for various applications. It excels in turning internal holes, reaming, and copying operations. The tool is particularly well-suited for semi-finishing tasks on existing hole cutters, making it an ideal choice for use with boring machines and lathe machines.

Replacement Carbide Insert CCMT09T304(CCMT32.51)

We also provide replace carbide insert for this boring bar ,please search the Asin B07W7PVWR1 to buy it

Q1: Will this boring bar fit my lathe? A: Yes – if your lathe tool post or boring bar holder accepts 3/4′′ straight shank tooling . This fits most large engine lathes, CNC lathes, and boring mills. The bar requires a minimum bore diameter of approximately 0.920′′ (23.4mm) .

Q2: What are the exact dimensions? A: Shank diameter: 3/4′′ (19.05mm). Overall length: 10′′. Minimum bore: approximately 0.920′′ (23.4mm). Right-hand SCLCR design.

Q3: What inserts are included? A: The set includes CCMT09T304 (CCMT32.5) carbide inserts . These are 80° diamond shape inserts with negative 5° end and side cutting angles-. Each insert has 2 indexable edges.

Q4: What does CCMT09T304 / CCMT32.5 mean? A: These are industry-standard designations for the 80° diamond insert shape:

CCMT : Clamp-style, 7° clearance, tolerance class M, chipbreaker style T

09T304 / 32.5 : Size specifications – 5/32′′ thickness, 11/64′′ hole diameter, 1/64′′ nose radius

Q5: What is the insert made of? A: The inserts are made of solid carbide with a multilayer coating , offering long tool life, faster cutting speeds, low friction coefficient, and good wear resistance-. They are also TiN-coated for durability and moisture/rust resistance.

Q6: Can I use this bar on a manual lathe? A: Yes – this bar is designed for use on both manual and CNC lathes, as well as boring machines. The 3/4′′ shank fits most standard tool posts.

Q7: What materials can I machine? A: Mild steel, carbon steel, stainless steel (with proper speeds/feeds), cast iron, aluminum, brass, copper, and alloy steels. Not for wood or abrasive composites.

Q8: Does this bar have through-coolant capability? A: No – this bar does not feature through-coolant. Use external coolant or cutting fluid applied to the cutting zone.

Q9: How do I change the inserts? A: Use the included T-15 Torx key to loosen the M4x8 screw clamp, rotate or replace the insert, and re-tighten-. Do not over-torque.

Q10: How long do the inserts last? A: Life depends on material, speeds, feeds, and coolant use – typically dozens to hundreds of parts per edge in mild steel. With 2 edges per insert, you get multiple uses before needing a replacement.

Q11: Where can I buy replacement inserts? A: Replacement CCMT09T304 (CCMT32.5) inserts are available separately from OSCARBIDE and other suppliers.

Q12: My bore is rough or oversized – what could be wrong? A: Check: insufficient cutting fluid, incorrect speeds/feeds, loose insert, or excessive depth of cut. Also ensure the bar is properly centered and the workpiece is securely held.

Product details