ZHANGJIAGANG FLAME MACHINERY CO.,LTD.
                                                                                                           
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29PC High Speed Steel Drill Bits (1/16–1/2 in) – Black & Gold, Three Flat Shank, Indexed Storage

Price Negotiable
Price: 13.8$/PCS
MOQ: 200
Delivery Time: 30-45days
Brand: XRTOOLS
Product Description

29PC Industrial Black & Gold Drill Bit Set — HSS, Round Shank, Indexed Sizes, Round Storage Box


Built for shops, installers, and serious DIYers, this 29-piece HSS drill bit set delivers reliable cutting performance with an industrial Black & Gold finish that reduces friction and resists corrosion. A round-shank, jobber-length design suits any 3-jaw chuck, while the indexed round box keeps sizes organized and easy to grab on the bench or in the van.

 

 

Key Advantages (multi-angle)

 


Cut quality & accuracy: 135° split-point starts fast with less walking; fully-ground flutes improve concentricity and chip flow.

Durability: Black oxide + gold finish enhances wear and rust resistance; HSS core maintains edge in wood, plastics, and light metals.

Productivity: Full 1/64" fractional coverage (1/16"–1/2") means fewer stops mid-project.

Usability: Round organizer box with indexed positions and size callouts speeds selection; round shank fits all standard chucks.

Value: Long service life and clean holes lower rework and cost per hole.

 

Typical Applications


Woodworking & cabinetry: pilot holes, hardware installs, dowel and shelf pin work

Electrical/HVAC: plastic enclosures, panels, light-gauge metals

General maintenance: brackets, fixtures, sheet goods, PVC and acrylic

Light fabrication: aluminum, brass, thin mild steel (use cutting oil)

For stainless/hardened steel, choose cobalt (M35/M42) bits.

 

 

Product Specifications: 29PC Black & Gold HSS Drill Bit Set

 

Feature Details
Material High Speed Steel (HSS), fully ground
Tip Geometry 135° split point, self-centering
Flutes Precision-ground twist, optimized chip evacuation
Length Type Jobber
Shank Round, 3-jaw chuck compatible
Finish Black & Gold oxide (wear & corrosion resistance)
Marking Size marked at index; optional laser etch on bits (OEM)
Storage Indexed round box (twist-to-select carousel)
Recommended Materials Wood, plastics, aluminum, brass, thin mild steel
Compliance Tight runout & concentricity control

Complete Size List (29-Piece)


Sizes Included:

 

 

Wholesale & Packaging


Round organizer box (impact-resistant, labeled index).

Retail sleeve with barcode; master cartons for distribution (e.g., 10–20 sets/ctn).

OEM options: private label, custom inserts, bilingual EN/RU label, laser-marked sizes.

Use Tips
For metals, use cutting oil and moderate RPM; peck to control heat.

For wood/plastics, higher RPM and light feed produce clean edges.

Keep bits sharp; regrind to maintain split-point geometry.

 

 

FAQ


Q1: Will these drill stainless steel?
A: They’re optimized for wood, plastics, aluminum, and thin mild steel. For stainless, choose cobalt M35/M42.

Q2: Are the bits impact-driver compatible?
A: These are round-shank bits for 3-jaw chucks. Use hex-shank variants for impact drivers.

Q3: Can I get a metric assortment?
A: Yes—metric or mixed assortments are available for OEM orders.

Q4: Do the sizes cover every 1/64"?
A: Yes, the set spans 1/16"–1/2" in 1/64" increments.

 

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company ZHANGJIAGANG FLAME MACHINERY CO.,LTD.
Location No. 16 Wenchang Road, Huicun Village, Dinggou Town, Jiangdu District, Yangzhou City,Jiang Su Province.
Contact Person Jerry

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