High Speed Steel Step Drills

ITEM # FHC-01-906-021

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Brand: UNIBIT

Model #: 21

Short Description: #21 UNIBIT STEP DRL

Msrp: $156.03

Price: $156.03 EA.

Description
Specification

Features

·Right hand (clockwise rotation) cutting direction.
·Multi-step design with progressively larger holes.
·Self-starting or hole enlarging styles.
·Straight shank diameters of 1/4", 3/8" or 1/2" (6.5mm, 10mm, or 13mm).
·Conical design permits as many as 13 different size holes to be drilled with one drill.
·These drills, depending on the model, have a step 1/8" to 3/8" (3.5mm to 11mm) thick between sizes.
·20 different models are available to produces holes from 1/8" to 1-3/8" or 4mm to 35mm.
·The hardened, high speed steel drill body is available in either an uncoated style or with a TiN coating for longer life in tougher materials.
Cobalt
·M35 grade provides high heat & abrasion resistance.
·Longest cutting life.
·6 times longer life vs. competition.

Applications

·Specialty step drill designed to machine a large number of different hole diameters with a single tool.
·Single cutting edge creates perfectly round holes in metal, plastic, and wood without center punching.
·For use with thin materials.
·Two general variations are available for either self-starting holes or for enlarging existing holes.
·Single flute design helps to ensure perfectly round holes in a wide range of ferrous, non-ferrous and non-metallic materials.

Unit Of Measure

Catalog Price

156.03

Product Spec Display

Brand

UNIBIT

Size Type

Fractional

Finish Coating

Bright

Model #

Size Range

13/16" to 1-3/8"

No. of Holes

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High Speed Steel Step Drills

Features

Applications

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