Drill Hog®

Drill Hog® HELIX Cobalt M42 Spiral Flute Step Bit

Drill Hog® HELIX Cobalt M42 Spiral Flute Step Bit - Main image
$139.87 $197 In stock

Category: Home & Garden Tools & Workshop Equipment Power Tools Drill Bits

Drill Hog® 5 Pc Helix Spiral Flute Cobalt M42 Step Drill Bit 

Included Sizes:
3/16" to 1/2" Helix Spiral Flute Step Drill Bit (6 Steps) 
6 Steps: 3/16", 1/4", 5/16", 3/8", 7/16", 1/2"

1/8" to 1/2" Helix Spiral Flute Step Drill Bit (13 Steps)
13 Steps:1/8", 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32", 1/2"

1/4" to 3/4" Helix Spiral Flute Step Drill Bit (9 Steps)
9 Steps: 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4"

3/16" to 7/8" Helix Spiral Flute Step Drill Bit (12 Steps)
12 Steps: 3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8"

1/4" to 1-3/8" Helix Spiral Flute Step Drill Bit (10 Steps)

10 Steps: 1/4", 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-3/8"


Specifications:
Super Premium Cobalt M42 Steel
Shank Size: 3/8" (1/4" to 3/4" & 3/16" to 7/8", 1/4" to 1-3/8")
Shank Size: 1/4" (3/16" to 1/2" & 1/8" to 1/2")

Helix Spiral Flute Design Cuts 39.5% Faster and Straighter

Helix Spiral Flutes Automatically Deburr While you Drill3 Flat Sides on the Shank so the Bit will Not "Spin" in the Chuck.

Drill Hog is proud to release the newest technology in step drill bits! These bits are made from Super Premium Cobalt M42 steel which has a melting point of 2723 Fahrenheit! This new design features the exclusive HELIX Spiral Flute design. 

The HELIX Spiral Flutes allow the bit to cut 39.5% faster than standard step drill bits. These bits will drill through the toughest steel like truck frames, stainless steel, farm implements, spring steel, grade-8 bolts, and more! 

Drill Hog includes a Lifetime Warranty to the original purchaser.

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Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.4 / 5 · 5 reviews)

Julian ★★★★★

Bought this set mainly for enlarging existing holes in sheet metal and it walked through 1/8" aluminum without grabbing or chattering. The spiral flutes clear chips way better than my old straight-flute bits, and the 6-step sizing from 3/16" to 1/2" covers almost everything I need.

Miles F. ★★★★★

Cobalt M42 steel cut through my stainless steel enclosure like it was butter, no pilot hole needed on the smaller steps. I was worried about chatter at the 1/2" step but the spiral flute pulled the chips out cleanly and the hole stayed perfectly round.

Henry ★★★★☆

The spiral flutes pull chips out way better than my old straight-flute bits, and the 3/16" to 1/2" range covers most of what I drill. Only gripe is the smallest step dulled a bit after a few holes in stainless.