Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
IRWIN Step Drill Bit: 5 mm to 35 mm, Black Oxide HSS - High-Speed Steel Step Drill Bits
IRWINHigh-Speed Steel Step Drill Bits

IRWIN Step Drill Bit: 5 mm to 35 mm, Black Oxide HSS

SKU 3G-OTH-208917

Brand
IRWIN
Item
Step Drill Bit: 5 mm to 35 mm, Black Oxide HSS
Category
High-Speed Steel Step Drill Bits
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

IRWIN
Manufacturer Part Number
11105ZR
View Full Spec Sheet

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

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

Frequently Asked Questions

What is the IRWIN 11105ZR step drill bit used for?

The IRWIN 11105ZR step drill bit is used for drilling progressively larger holes in thin materials like sheet metal, plastic, and wood. Its 5 mm to 35 mm range and black oxide HSS construction suit maintenance, fabrication, and electrical work where clean, burr-free holes are needed.

What are the specifications of the IRWIN 11105ZR step drill bit?

The IRWIN 11105ZR step drill bit has a 5 mm to 35 mm diameter range, black oxide high-speed steel (HSS) construction, and a 3-flats shank for secure chuck grip. It is not impact rated. The manufacturer part number is 11105ZR.

Where to buy the IRWIN 11105ZR step drill bit worldwide?

3G Electric supplies the IRWIN 11105ZR step drill bit worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this HSS step drill bit.

How to select the right IRWIN step drill bit size?

Select an IRWIN step drill bit like the 11105ZR by matching its diameter range (5 mm to 35 mm) to your hole size needs. For thin materials, choose a bit with a 3-flats shank to prevent slipping. Always verify the material type and that the bit is not impact rated for your tool.

Used in

Common applications for IRWIN
Wood framing and decking — IRWIN ship auger bits (e.g., SKU 4AAT6) for deep drilling in timber
Electrical and plumbing installations — IRWIN hybrid utility bits (e.g., SKU 5ELR0) for drilling through wood and thin metal
Automotive assembly and repair — IRWIN power socket adapters (e.g., SKU 55EW60) for driving sockets with impact tools
General construction fastening — IRWIN impact Torx bits (e.g., SKU 787P77) for driving screws in metal and wood
Cabinet making and furniture assembly — IRWIN power bits (e.g., SKU 55EW15) for Phillips head screws in particle board and hardwood
Maintenance and repair tasks — IRWIN insert bits (e.g., SKU 55EW26) for quick bit changes in cordless screwdrivers

IRWIN Products

3G Electric supplies IRWIN high-speed steel step drill bits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
WIHA Bit Holder: Bit Holder, Hand, 1/4 in Compatible Bit Size, Hex Compatible Bit Shank, Nonmagnetic (MPN 28925). Key specifications — attr1132695: Hex; attr1132691: Not Impact Rated; attr1132694: Nonmagnetic; attr1132704: WIHA.
WIHA
WIHA Bit Holder: Bit Holder, Hand, 1/4 in Compatible Bit Size, Hex Compatible Bit Shank, Nonmagnetic (MPN 28925). Key specifications — attr1132695: Hex; attr1132691: Not Impact Rated; attr1132694: Nonmagnetic; attr1132704: WIHA.
WIHA Insulated Screwdriver Blade: Hex Head, Insulated Screwdriver Blade, Metric, Std, Hex, Steel (MPN 28337). Key specifications — attr1119772: Steel; attr1119779: WIHA; attr1119769: 5.0 mm; attr1119776: Hex; attr1119778: Standard.
WIHA
WIHA Insulated Screwdriver Blade: Hex Head, Insulated Screwdriver Blade, Metric, Std, Hex, Steel (MPN 28337). Key specifications — attr1119772: Steel; attr1119779: WIHA; attr1119769: 5.0 mm; attr1119776: Hex; attr1119778: Standard.
WIDIA HANITA Roughing End Mill: Carbide, AlTiN Coated, 4 Flute, 3/8" Mill Dia, 7/8" LOC, 0.03" Rad (MPN 4M0R10004BT)
WIDIA HANITA
WIDIA HANITA Roughing End Mill: Carbide, AlTiN Coated, 4 Flute, 3/8" Mill Dia, 7/8" LOC, 0.03" Rad (MPN 4M0R10004BT)
WIHA Insulated Screwdriver Blade: Hex Head, Insulated Screwdriver Blade, Metric, Std, Hex, Steel (MPN 28336). Key specifications — attr1119772: Steel; attr1119779: WIHA; attr1119769: 4.0 mm; attr1119776: Hex; attr1119778: Standard.
WIHA
WIHA Insulated Screwdriver Blade: Hex Head, Insulated Screwdriver Blade, Metric, Std, Hex, Steel (MPN 28336). Key specifications — attr1119772: Steel; attr1119779: WIHA; attr1119769: 4.0 mm; attr1119776: Hex; attr1119778: Standard.
MILWAUKEE Annular Cutter: 1 7/16 in Cutter Dia, 1 in Max Cutting Dp, Black Oxide, High Speed Steel (MPN 49-59-1437). Key specifications — attr253884: No; attr253885: Black Oxide; attr253886: High Speed Steel; attr253887: Weldon Flat; attr253888: Fractional Inch; attr277149: MILWAUKEE.
MILWAUKEE
MILWAUKEE Annular Cutter: 1 7/16 in Cutter Dia, 1 in Max Cutting Dp, Black Oxide, High Speed Steel (MPN 49-59-1437). Key specifications — attr253884: No; attr253885: Black Oxide; attr253886: High Speed Steel; attr253887: Weldon Flat; attr253888: Fractional Inch; attr277149: MILWAUKEE.
WIDIA HANITA Roughing End Mill: Carbide, AlTiN Coated, 3 Flute, 1/4" Mill Dia, 3/8" LOC, 0.03" Rad (MPN 4M4R07002BT)
WIDIA HANITA
WIDIA HANITA Roughing End Mill: Carbide, AlTiN Coated, 3 Flute, 1/4" Mill Dia, 3/8" LOC, 0.03" Rad (MPN 4M4R07002BT)

More from IRWIN

View all IRWIN parts →
IRWIN Step Drill Bit: 1/2", Black Oxide HSS, Hex Shank (MPN 10310). Key specifications — attr1234936: Not Impact Rated.
IRWIN
IRWIN Step Drill Bit: 1/2", Black Oxide HSS, Hex Shank (MPN 10310). Key specifications — attr1234936: Not Impact Rated.
IRWIN Step Drill Bit: 1/4" to 1-3/8", Black Oxide HSS, Hex Shank (MPN 10235). Key specifications — attr1234936: Not Impact Rated.
IRWIN
IRWIN Step Drill Bit: 1/4" to 1-3/8", Black Oxide HSS, Hex Shank (MPN 10235). Key specifications — attr1234936: Not Impact Rated.
IRWIN Step Drill Bit: 7/8", Black Oxide HSS, 3-Flats Shank (MPN 10311ZR). Key specifications — attr1234936: Not Impact Rated.
IRWIN
IRWIN Step Drill Bit: 7/8", Black Oxide HSS, 3-Flats Shank (MPN 10311ZR). Key specifications — attr1234936: Not Impact Rated.
IRWIN Step Drill Bit: 1/4" to 3/4", Black Oxide HSS, 3-Flats Shank (MPN 10233). Key specifications — attr1234936: Not Impact Rated.
IRWIN
IRWIN Step Drill Bit: 1/4" to 3/4", Black Oxide HSS, 3-Flats Shank (MPN 10233). Key specifications — attr1234936: Not Impact Rated.
IRWIN Step Drill Bit: 3/16" to 1/2", Black Oxide HSS, Hex Shank (MPN 10232). Key specifications — attr1234936: Not Impact Rated.
IRWIN
IRWIN Step Drill Bit: 3/16" to 1/2", Black Oxide HSS, Hex Shank (MPN 10232). Key specifications — attr1234936: Not Impact Rated.
IRWIN Step Drill Bit: 1-1/8", Black Oxide HSS, 3-Flats Shank (MPN 10313ZR). Key specifications — attr1234936: Not Impact Rated.
IRWIN
IRWIN Step Drill Bit: 1-1/8", Black Oxide HSS, 3-Flats Shank (MPN 10313ZR). Key specifications — attr1234936: Not Impact Rated.
IRWIN Step Drill Bit: 1/8" to 1/2", Black Oxide HSS, Hex Shank (MPN 10231). Key specifications — attr1234936: Not Impact Rated.
IRWIN
IRWIN Step Drill Bit: 1/8" to 1/2", Black Oxide HSS, Hex Shank (MPN 10231). Key specifications — attr1234936: Not Impact Rated.
IRWIN Step Drill Bit: 4 mm to 22 mm, Black Oxide HSS, Hex Shank (MPN 11104). Key specifications — attr1234936: Not Impact Rated.
IRWIN
IRWIN Step Drill Bit: 4 mm to 22 mm, Black Oxide HSS, Hex Shank (MPN 11104). Key specifications — attr1234936: Not Impact Rated.