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Round Drill Set Twist 115 Piece M35 14mm Drill Bit For Steel
Round Drill Set Twist 115 Piece M35 14mm Drill Bit For Steel
Round Drill Set Twist 115 Piece M35 14mm Drill Bit For Steel
Round Drill Set Twist 115 Piece M35 14mm Drill Bit For Steel
Round Drill Set Twist 115 Piece M35 14mm Drill Bit For Steel
Round Drill Set Twist 115 Piece M35 14mm Drill Bit For Steel
Round Drill Set Twist 115 Piece M35 14mm Drill Bit For Steel
Round Drill Set Twist 115 Piece M35 14mm Drill Bit For Steel
Round Drill Set Twist 115 Piece M35 14mm Drill Bit For Steel
Round Drill Set Twist 115 Piece M35 14mm Drill Bit For Steel
Round Drill Set Twist 115 Piece M35 14mm Drill Bit For Steel
Round Drill Set Twist 115 Piece M35 14mm Drill Bit For Steel
Specifications
Color :
amber color
Use :
Metal Drilling
Application :
Drilling Holes,Stainless Steel,concrete etc.
Shank :
Round/Three-flatted/Hex shank and so on
Type :
HSS Cobalt Twist Drill Bit
Brand Name :
XRTOOLS
Model Number :
115PC
Certification :
ISO9000
Place of Origin :
CHINA
MOQ :
200
Price :
48.6$/PCS
Payment Terms :
L/C, D/P, T/T, Western Union
Supply Ability :
300,0000PCS PER MOUTH
Delivery Time :
30-45days
Packaging Details :
metal box
Material :
HSS-M35
Product name :
115PCS Drill Bit Set
Process :
Fully Ground
Feature :
Sharpness,High Speed.Straight Smooth Edge,Longer Working Life
Packing :
Aluminium case or as your request
Description

M35 Cobalt Fully-Ground Twist Drill Set – Ideal for Stainless Steel – 115-Piece Round-Shank Kit


Engineered for shops that drill tough metals all day, this 115-piece M35 cobalt HSS (≈5% Co) drill set pairs a fully-ground body with a 135° split point for fast, self-centering starts and cleaner, rounder holes. The round-shank, jobber-length design fits any 3-jaw chuck, while the heavy-duty metal index case keeps every size organized for quick picks on the bench or at the jobsite.

Why it performs


Built for stainless: M35 cobalt maintains edge hardness at high temperature—perfect for 304/316 stainless, carbon & alloy steels, and cast iron.

Clean starts, less walking: 135° split-point reduces thrust, skidding, and burr at breakthrough.

Fully ground flutes: Better concentricity and chip evacuation = smoother holes, longer life.

Complete size coverage: One case covers pilots to large holes—no more hunting for the right bit.

Shop-ready storage: Labeled metal index with tight wells and durable hinge for daily use.

Round Drill Set Twist 115 Piece M35 14mm Drill Bit For Steel

What’s in the 115-piece kit

Series Range Count
Numbered #1–#60 60
Letter A–Z 26
Fractional (inch) 1/16"–1/2" by 1/64" 29
Total 115

Technical specifications

Feature Details
Substrate M35 Cobalt High-Speed Steel (≈5% Co)
Geometry 135° split-point, web-thinned (self-centering, low thrust)
Flutes Fully ground twist flutes, polished for chip flow
Length Type Jobber (ANSI/DIN 338 equivalent)
Shank Round, 3-jaw chuck compatible
Finish Bright ground (optional Black & Gold / Black Oxide/Gold )
Hardness (typ.) ≥ HRC 66 after heat treatment
Tolerances Tight runout/concentricity; size laser-marked (option)
Recommended Materials Stainless (304/316), carbon & alloy steel, cast iron, bronze/brass, aluminum
Resharpenable Yes—maintain split-point geometry
Storage Metal index case, labeled trays for Number/Letter/Fractional

Round Drill Set Twist 115 Piece M35 14mm Drill Bit For Steel

Speed & feed quick guide (rule-of-thumb)

Material Surface Speed (SFM) Notes
Stainless 304/316 25–40 Use cutting oil; peck on deep holes
Carbon/Alloy Steel 40–70 Coolant/oil extends life
Cast Iron 50–80 Dry or minimal oil; avoid rubbing
Aluminum/Brass 150–250 Light oil optional for finish

Round Drill Set Twist 115 Piece M35 14mm Drill Bit For Steel

Typical applications


Fabrication & MRO: brackets, channel, plate, frames, handrails

Electrical/HVAC: panels, enclosures, pilot holes for knockouts

Automotive/Upfit: mounts, fastener prep, stainless trim

General workshop: jigs, fixtures, small-batch production

Packaging & OEM options


Case: heavy-gauge metal index, labeled wells, retail sleeve & barcode

Wholesale: master cartons for distributors; spare tray sets available

OEM/Private label: custom assortments (metric/imperial/mixed), finish options, laser-etched sizes, EN/RU bilingual labels, spec sheets with your branding

FAQ


Q1: Will these drill stainless reliably?
Yes—M35 cobalt + 135° split-point are designed for stainless. Use lower RPM, cutting oil, and peck cycles.

Q2: Impact-driver compatible?
Round shanks are for 3-jaw chucks. Ask about hex-shank cobalt variants for impact drivers.

Q3: Can I resharpen them?
Absolutely. Regrind while keeping the split-point geometry; M35 grinds cleanly.

Q4: Metric version available?
Yes—metric and mixed maps are available for OEM orders.

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Round Drill Set Twist 115 Piece M35 14mm Drill Bit For Steel

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Product Detail
Color :
amber color
Use :
Metal Drilling
Application :
Drilling Holes,Stainless Steel,concrete etc.
Shank :
Round/Three-flatted/Hex shank and so on
Type :
HSS Cobalt Twist Drill Bit
Brand Name :
XRTOOLS
Contact Supplier
video
Round Drill Set Twist 115 Piece M35 14mm Drill Bit For Steel
Round Drill Set Twist 115 Piece M35 14mm Drill Bit For Steel
Round Drill Set Twist 115 Piece M35 14mm Drill Bit For Steel
Round Drill Set Twist 115 Piece M35 14mm Drill Bit For Steel
Round Drill Set Twist 115 Piece M35 14mm Drill Bit For Steel
Round Drill Set Twist 115 Piece M35 14mm Drill Bit For Steel

ZHANGJIAGANG FLAME MACHINERY CO.,LTD.

Verified Supplier
6 Years
yangzhou
Since 2018
Business Type :
Manufacturer, Exporter, Trading Company
Main Products :
HSS Drill Bit, Drill Bit Set, Masonry Drill Bit
Total Annual :
500-600
Employee Number :
135~150
Certification Level :
Verified Supplier
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