Screw Bits

Hardened, tested, and ground to spec. Built to drive thousands of fasteners without rounding, chipping, or quitting on the job.

58–60
Rockwell HRC
S2
Tool steel
Core
Hardened
8
Drive profiles

Phillips

Drive Profile

The industry workhorse. Available in #1, #2, and #3 across insert through 6-inch power lengths.

Sizes#1 · #2 · #3
Lengths1″ — 6″
PH Phillips screw bits

#1 Phillips

Item No.Length
TH-B-440-11″ (Insert)
TH-B-050-PH-12″
TH-B-070-PH-12 3/4″
TH-B-090-PH-13 1/2″

#2 Phillips

Item No.Length
TH-B-440-21″ (Insert)
TH-B-050-PH2″
TH-B-070-PH2 3/4″
TH-B-090-PH3 1/2″
TH-B-150-PH6″

#3 Phillips

Item No.Length
TH-B-050-PH-32″
TH-B-070-PH-32 3/4″
TH-B-090-PH-33 1/2″
TH-B-150-PH-36″

Square

Drive Profile

Robertson-style drives engineered for high cam-out resistance — preferred for cabinetry and deck assembly.

Sizes#1 · #2 · #3
Lengths1″ — 6″
SQ Square drive bits

#1 Square

Item No.Length
TH-B-050-SQ-12″
TH-B-070-SQ-12 3/4″
TH-B-090-SQ-13 1/2″
TH-B-150-SQ-16″

#2 Square

Item No.Length
TH-B-950-21″ (Insert)
TH-B-050-SQ2″
TH-B-070-SQ2 3/4″
TH-B-090-SQ3 1/2″
TH-B-100-SQ4″
TH-B-150-SQ6″

#3 Square

Item No.Length
TH-B-050-SQ-32″
TH-B-070-SQ-32 3/4″
TH-B-090-SQ-33 1/2″
TH-B-150-SQ-36″

Star

Drive Profile

Six-lobe drives that handle high torque without slipping. Standard and security (tamper-resistant) configurations.

SizesT20 — T50
Lengths1″ & 2″
STAR Star bits

1″ Insert

Item No.Size
TH-B-TX25-INST25
TH-B-TX30-INST30
TH-B-TX40-INST40
TH-B-TX50-INST50

2″ Length

Item No.Size
TH-B-TX20-2T20
TH-B-TX25-2T25
TH-B-TX30-2T30
TH-B-TX40-2T40
TH-B-TX45-2T45
TH-B-TX50-2T50

2″ Security

Item No.Size
TH-B-TX40-2-TT40
TH-B-TX45-2-TT45

Magnetic Holder

Accessory

Quick-change extension with rare-earth magnet retention. Holds insert bits securely under impact and vibration.

Item No.TH-B-MAG-490
Length2 3/8″
Connection1/4″ M / F
MAG Magnetic bit holder

Nut Setters

Accessory

Magnetized hex sockets for sheet metal screws and lag bolts. Standard and tapered profiles.

Hex range1/4″ — 9/16″
Lengths1.8″ — 2.56″
MAG Magnetic nut setters
Item No.LengthHex Size
TH-B-MAG-08-H1 4/5″1/4″ Nut
TH-B-MAG-10-H1 4/5″5/16″ Nut
TH-B-MAG-12-H1 4/5″3/8″ Nut
TH-B-MAG-14-H1 4/5″7/16″ Nut
TH-B-MAG-16-H1 4/5″1/2″ Nut
TH-B-MAG-18-H1 4/5″9/16″ Nut
TH-B-MAG-AT08-H2″1/4″ Nut (tapered)
TH-B-MAG-AT08-H2.56″1/4″ Nut (tapered)

Slotted

Drive Profile

Classic flat-blade drivers for legacy fasteners and trim work. Available with and without finder sleeve.

Drive1/4″
SL Slotted bits
Item No.Description
TH-B-320SL1/4″ Slotted with Finder Sleeve
TH-B-3201/4″ Slotted