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Malco Products Inc. Est. 1950

56

Drivers and Drills

Malco Step Drills actually deburr as they drill. Perfect for use as a “hole-opening” reamer. They can also be used for making round

holes from slots or intersecting holes. Made of industrial grade high speed steel. Malco Step Drills are heat treated and tempered

to assure maximum strength for long wearing rugged use.

(Note: All sizes listed in inches).

Drill hole sizes from 1/8 to 1 in. through sheet metal without burring,

deforming stock or threading drill bit. A unique double flute design

assures the penetration of soft or thin materials at the proper speed.

UB1

RD6

UB3

UB11

UB20

1/4

5/16

3/8

7/16

1/2

9/16

5/8

11/16

3/4

9/16

5/8

11/16

3/4

13/16

7/8

15/16

1

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

5/16

3/8

7/16

1/2

9/16

5/8

11/16

3/4

13/16

7/8

Catalog

Depth

Elect.

Pilot Hole

Number

Description

Each Step (in.)

Drill Size (in.)

Required (in.)

UB1

Drills 13 hole sizes from 1/8 to 1/2 in. diameter in 1/32 in. (0.79) increments.

1/8

3/8

No

UB3

Drills 9 hole sizes from 1/4 to 3/4 in. diameter in 1/16 in. increments.

1/8

3/8

No

UB11

Drills 11 hole sizes from 1/4 to 7/8 in. diameter for creating 1/2 in. knock outs.

N/A

3/8

No

UB20

Drills 8 hole sizes from 9/16 to 1 in. diameter in 1/16 in. increments.

1/8

3/8

1/2

Catalog

Number

Description

RD6

Driver with 2 combination bits and 2 hex barrel openings

9/32 in.

Slotted Head

#2 Phillips

Durable Black

Oxide Handle

5/16 in.

Hex opening

3/16 in.

Slotted Head

#1 Phillips

1/4 in.

Hex opening

Combination bits change to drive 6 different head

styles or sizes. 1/4 & 5/16 in. Hex opening nut driver

with 3/16 & 9/32 in. slotted head bit and #1 & #2

phillips head bit.

Shank firmly locks into handle barrel.

Driver bits are individual protected with black oxide.

Shank is chrome plated to protect against rust.

6 in 1 Reversible Driver

Step Drills