WALTERChip-Clearing Cobalt Screw-Machine Length Drill Bits

WALTER A1148-LET.C Chip-Clearing Cobalt Screw-Machine Length Drill Bit

The WALTER Screw Machine Drill Bit: Letter C is a chip-clearing cobalt screw-machine length drill bit from WALTER. It features a 130° point, parabolic flute, and fast spiral design, with a diameter of 0.2420 inches…

SKU 3G-OTH-307281

Also listed as: A1148LETC · A1148 LET C · A1148-LET-C

Brand

WALTER

Item

A1148-LET.C Chip-Clearing Cobalt Screw-Machine Length Drill Bit

Part Number

A1148-LET.C

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

WALTER

Manufacturer Part Number

A1148-LET.C 

Type

Cobalt, Parabolic Flute, Fast Spiral 

Point

130° 

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

WALTER Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Frequently Asked Questions

What is the WALTER Screw Machine Drill Bit: Letter C used for?

The WALTER Screw Machine Drill Bit: Letter C is used for chip-clearing drilling in metalworking applications. Its cobalt construction, parabolic flute, and fast spiral design make it suitable for deep-hole drilling in tough materials like stainless steel and high-temperature alloys, commonly used in automotive and aerospace manufacturing.

What are the specifications of the WALTER A1148-LET.C drill bit?

The WALTER A1148-LET.C drill bit has a diameter of 0.2420 inches (Letter C), a 130° point angle, and a parabolic flute with a fast spiral. It is made of cobalt for heat resistance and is a screw-machine length design. The manufacturer part number is A1148-LET.C.

Where to buy WALTER drill bits worldwide?

You can source the WALTER A1148-LET.C drill bit 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 on this cobalt screw-machine length drill bit.

How to select the right WALTER screw-machine drill bit?

Select based on material and hole depth. For tough alloys, choose cobalt with a 130° point and parabolic flute, like the WALTER A1148-LET.C. Ensure the diameter matches your hole size (0.2420 inches for Letter C). Use screw-machine length for rigid setups. Consult WALTER's technical data for feed and speed recommendations.

Used in

Common applications for WALTER

Automotive engine component machining — WALTER indexable face mills (e.g., F2010.B.250.Z12.13.R722M) for face milling cylinder heads and blocks.

Aerospace structural parts manufacturing — WALTER screw-machine length drill bits (e.g., A1148-4.5) for drilling holes in aluminum and titanium components.

General machining job shops — WALTER indexable face mills (e.g., F4042R.B16.040.Z05.10) for face milling steel and stainless steel workpieces.

Heavy equipment repair — WALTER indexable face mills (e.g., 127 mm diameter with 11 inserts) for resurfacing large cast iron and steel parts.

Energy sector valve and pump manufacturing — WALTER indexable face mills (e.g., 100 mm diameter with R720M geometry) for machining sealing surfaces.

CNC lathe operations — WALTER screw-machine length drill bits (e.g., A1148-4.5) for drilling in automated turning centers with bar feeders.

Not sure this is the right part? Photo-identify it→

WALTER Products

3G Electric supplies WALTER chip-clearing cobalt screw-machine length drill bits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

Browse all WALTER products →Contact our engineers →