Norseman Step Drills Ultra Bits | Coremark Metals

Norseman Step Drills Ultra Bit

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Product Overview

Norseman Step Drills Ultra Bit™ Multi-Diameter

Fractional Size

Ideal For: Metals, Plastic, Wood

- Gold Oxide Electrician Step Drill Type 78-AG
- Special axial and Radial flute design increases work piece penetration.
- Duel flute contruction drills clean accurate holes in thin materials, quickly and easily.
- 3 flats on shank give positive chuck-grip.
- Gold oxide provides low temperature stress relief that enhances lubricity, reduces friction, and increases tap toughness.

Free Shipping*

Free standard shipping on most hardware item purchases of $99.99 or more. Some exclusions apply.

This offer is not valid on prior purchases. Certain items containing weight and/or size shipping restrictions may require additional freight charges; these items will be identified in their product descriptions. Coremark Metals reserves the right to change or end this offer at any time. Additional exclusions include shipping to Alaska, Hawaii, international destinations, metal items, and processing services. Free shipping options will be reflected during the checkout process.

Specifications

DETAILS

Size Hole Sizes No. Range Shank Size Step Increments Step Thickness
1 13 1/8" - 1/2" 1/4" 1/32" 1/8"
2* 8 1/4" - 1" 3/8" 1/16" 5/32"
3 9 1/4" - 3/4" 3/8" 1/16" 5/32"
4 6 3/16" - 1/2" 1/4" 1/16" 3/8"
7 1 1/4" - 7/8" 3/8" 1/16" 1/16"
8 12 3/16" - 7/8" 3/8" 1/16" 1/8"
9 3 7/8" - 1-7/32" 3/8" 7/8" ---
11 2 7/8" - 1-1/8" 3/8" 27/64" 9/64"
12 5 1/4" - 1-3/8" 3/8" 1/8" *SEE NOTE
1/4 A 16 1/4" - 1-1/8" 3/8" 1/16" 1/16"
13/16 10 13/16" - 1-3/8" 1/2" 1/32" 5/32"
* Size 2: Also referred to as 9/16" - 1" No. Range
* Size 12: 7/8", 1-1/8", 1-7/32", 1-1/4", 1-3/8"  (1/2" and 3/4" conduit)


 

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