Plug Gage | STI

Premium HSS thread plug gages

Tool Features

HSS, STI

Series 191 Overview

  • A mechanical thread inspection tool used to check a work piece against its allowed thread tolerances
  • For inspection of screw thread insert (STI) threads
  • Hardened High Speed Steel construction

Series Lineup

General Purpose - Threading

Series 193P

Plug Gage

HSS, NPT & NPTF

General Purpose - Threading

Series 197

Plug Gage

HSS, NPT & NPTF

General Purpose - Threading

Series 196M

Plug Gage

HSS, Metric

General Purpose - Threading

Series 196

Plug Gage

HSS

General Purpose - Threading

Series 194

Plug Gage

HSS, BSPT & BSPP

General Purpose - Threading

Series 192

Plug Gage

HSS, NPT & NPTF

General Purpose - Threading

Series 191

Plug Gage

HSS, STI

General Purpose - Threading

Series 190M

Plug Gage

HSS, Reversible, Metric

General Purpose - Threading

Series 190

Plug Gage

HSS, Reversible

General Purpose - Threading

Series 195M

Plug Gage

HSS, Taperlock, Metric

General Purpose - Threading

Series 195

Plug Gage

HSS, Taperlock

General Purpose - Threading

Series 126

Straight Flute Carbide Tap

Carbide, Bright

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 119H

Tap Extension

HSS, ANSI, NPT, Coolant

General Purpose - Threading

Series 118H

Tap Extension

HSS, Coolant & Solid

General Purpose - Threading

Series 118S

Tap Extension

HSS

General Purpose - Threading

Series 117H

Tap Extension

HSS, ANSI, Coolant-Through, Inch

General Purpose - Threading

Series 117

Tap Extension

HSS, ANSI, Inch

General Purpose - Threading

Series 143

Round Die

HSS, Bright

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 142M

Round Die

HSS, Bright, Metric

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 142

Round Die

HSS, Bright

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 141M

Round Die

HSS, Bright, Metric

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 141P

Round Die

HSS, Bright

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 141

Round Die

HSS, Bright

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 158M

Hex Metric Combo Drill/Tap

HSS, Multi FL, Bright, TiN, Metric

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 158

Hex Combo Drill/Tap

HSS, Multi FL, Bright, TiN

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 157

HSS Combo Drill/Tap

HSS, Multi FL, Bright, TiN

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 156M

Metric Combo Drill/Tap

HSS, Multi FL, Bright, TiN, Metric

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 156

Combo Drill/Tap

HSS, Multi FL, Bright, TiN

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 109M

Spiral Point Tap

HSS, Multi FL, Bright, TiN, TiCN, Metric

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 108M

Metric Hand Tap

HSS, Multi FL, Bright, TiN, TiCN, Metric

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 101L

Hand Tap

HSS, Multi FL, Bright, TiN, TiCN

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 105L

Spiral Point Tap

HSS, Multi FL, Bright, TiN, TiCN

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 169T

ACME Hand Tap

HSS, 4FL, Bright, TiN, TiCN

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 169

ACME Hand Tap

HSS, 4FL, Bright, TiN, TiCN

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 168T

ACME Hand Tap

HSS, 4FL, Bright, TiN, TiCN

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 168

ACME Hand Tap

HSS, 4FL, Bright, TiN, TiCN

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 170C

Conduit Tap

HSS, Multi FL, Bright, TiN, TiCN

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 167

STI Spiral Point Tap

HSS, Multi FL, Bright, TiN, TiCN

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 166

STI Hand Tap

HSS, Multi FL, Bright, TiN, TiCN

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 165

Left Hand Spiral Point Tap

HSS, Multi FL, Bright, TiN, TiCN

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 164M

Left Hand Metric Hand Tap

HSS, 4FL, Bright, TiN, TiCN, Metric

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 164

Left Hand Hand Tap

HSS, Multi FL, Bright, TiN, TiCN

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 137

4 Flute Modified Pipe Tap

HSS, 4FL, Bright, TiN, TiCN

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 136

Full Pipe Tap

HSS, Multi FL, Bright, TiN, TiCN

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 136P

Full Pipe Tap

HSS, Multi FL, Bright, TiN, TiCN

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 135

British Standard Pipe Tap

HSS, Multi FL, Bright, TiN, TiCN

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 134

British Standard Pipe Tap

HSS, Multi FL, Bright, TiN, TiCN

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 133

Multi Flute Pipe Taps

HSS, Multi FL, Bright, TiN, TiCN

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 132

Multi Flute Spiral Flute Pipe Tap

HSS, Multi FL, Bright, TiN, TiCN

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 131F

Multi Flute Pipe Tap

HSS, Multi FL, Bright, TiN, TiCN

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 131I

Multi Flute Pipe Tap

HSS, Multi FL, Bright, TiN, TiCN

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 131

Multi Flute Pipe Tap

HSS, Multi FL, Bright, TiN, TiCN

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 104M

Multi Flute Metric Forming Tap

HSS, Multi FL, Bright, TiN, TiCN, Metric

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 104

Multi Flute Forming Tap

HSS, Multi FL, Bright, TiN, TiCN

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 105M

Multi Flute Spiral Point Metric Tap

HSS, Multi FL, Bright, TiN, TiCN, Metric

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 105

Multi Flute Spiral Point Tap

HSS, Multi FL, Bright, TiN, TiCN

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 107M

Multi Flute Spiral Flute Metric Tap

HSS, Multi FL, Bright, TiN, TiCN, Metric

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 107

Multi Flute Spiral Flute Tap

HSS, Multi FL, Bright, TiN, TiCN

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 101M

Multi Flute Metric Hand Tap

HSS, Multi FL, Metric, Bright, TiN, TiCN

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 103

4 Flute Hand Tap

HSS, 4FL, Bright, TiN, TiCN

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 101

HSS Hand Tap

HSS, Multi FL, Bright, TiN, TiCN

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 128M

Spiral Point Metric Carbide Tap

Carbide, Bright, Metric

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 128

Spiral Point Carbide Tap

Carbide, Bright

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 126M

Straight Flute Metric Carbide Taps

Carbide, Bright, Metric

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Series 127

NPT/F Pipe Carbide Tap

Carbide, Bright

P1

P2

P3

K1

K2

N1

N2

H1

General Purpose - Threading

Smart Cut Fluid

Tapping Oil


Product Offering

Part Number taps_thread_size taps_class_of_fit taps_go_nogo Stock List Price
24617 4-40 NC 2B Go/NoGo 0 $312.66
24622 4-48 NF 2B Go/NoGo 0 $312.66
24627 5-40 NC 2B Go/NoGo 0 $312.66
24594 2-56 NC Go 0 $152.92
24634 6-32 NC 2B Go 1 $146.10
24615 4-40 NC 2B NoGo 2 $146.10
24620 4-48 NF 2B NoGo 0 $146.10
24614 4-40 NC Go 2 $146.10
24597 2-56 NC 2B Go/NoGo 0 $325.59
24616 4-40 NC 3B NoGo 0 $146.10
24619 4-48 NF Go 0 $146.10
24626 5-40 NC 3B NoGo 0 $146.10
24636 6-32 NC 2B NoGo 2 $146.10
24640 6-40 NF 2B NoGo 1 $146.10
24624 5-40 NC Go 2 $146.10
24638 6-32 NC 3B Go/NoGo 0 $312.66
24625 5-40 NC 2B NoGo 1 $146.10
24635 6-32 NC 3B NoGo 2 $146.10
24637 6-32 NC Go/NoGo 0 $312.66
24641 6-40 NF 3B NoGo 0 $146.10
24643 6-40 NF 3B Go/NoGo 0 $312.66
24648 8-32 NC 3B Go/NoGo 0 $292.02
24651 8-36 NF 3B NoGo 1 $136.04
24653 8-36 NF 3B Go/NoGo 0 $292.02
24647 8-32 NC 2B Go/NoGo 0 $292.02
24598 2-56 NC 3B Go/NoGo 0 $325.59
24618 4-40 NC 3B Go/NoGo 0 $312.66
24621 4-48 NF 3B NoGo 1 $146.10
24628 5-40 NC 3B Go/NoGo 0 $312.66
24639 6-40 NF Go 0 $146.10
24642 6-40 NF 2B Go/NoGo 0 $312.66
24646 8-32 NC 3B NoGo 2 $136.04
24623 4-48 NF 3B Go/NoGo 0 $312.66
24645 8-32 NC 2B NoGo 0 $136.04
24650 8-36 NF 2B NoGo 0 $136.04
24656 10-24 NC 3B NoGo 4 $136.04
24644 8-32 NC Go 2 $136.04
24659 10-32 NF Go 1 $136.04
24662 10-32 NF 2B Go/NoGo 0 $292.02
24657 10-24 NC 2B Go/NoGo 0 $292.02
24664 12-24 NC Go 2 $137.49
24667 12-24 NC 2B Go/NoGo 0 $292.02
24668 12-24 NC 3B Go/NoGo 0 $292.02
24674 1/4-20 NC Go 0 $129.23
24676 1/4-20 NC 3B NoGo 0 $129.23
24680 1/4-28 NF 2B NoGo 1 $129.23
24683 1/4-28 NF 3B Go/NoGo 0 $274.97
24684 5/16-18 NC Go 0 $129.23
24679 1/4-28 NF Go 1 $129.23
24692 5/16-24 NF 2B Go/NoGo 0 $274.97
24690 5/16-24 NF 2B NoGo 1 $129.23
24696 3/8-16 NC 3B NoGo 1 $129.23
24699 3/8-24 NF Go 2 $129.23
24702 3/8-24 NF 2B Go/NoGo 0 $274.97
24665 12-24 NC 2B NoGo 1 $137.49
24678 1/4-20 NC 3B Go/NoGo 0 $274.97
24652 8-36 NF 2B Go/NoGo 0 $292.02
24686 5/16-18 NC 3B NoGo 1 $129.23
24655 10-24 NC 2B NoGo 0 $136.04
24685 5/16-18 NC 2B NoGo 2 $129.23
24649 8-36 NF Go 1 $136.04
24654 10-24 NC Go 2 $136.04
24661 10-32 NF 3B NoGo 3 $136.04
24663 10-32 NF 3B Go/NoGo 0 $292.02
24675 1/4-20 NC 2B NoGo 1 $129.23
24658 10-24 NC 3B Go/NoGo 0 $292.02
24687 5/16-18 NC 2B Go/NoGo 0 $274.97
24691 5/16-24 NF 3B NoGo 0 $129.23
24660 10-32 NF 2B NoGo 0 $136.04
24698 3/8-16 NC 3B Go/NoGo 0 $274.97
24666 12-24 NC 3B NoGo 1 $137.49
24682 1/4-28 NF 2B Go/NoGo 0 $274.97
24688 5/16-18 NC 3B Go/NoGo 0 $274.97
24694 3/8-16 NC Go 1 $129.23
24697 3/8-16 NC 2B Go/NoGo 0 $274.97
24701 3/8-24 NF 3B NoGo 1 $129.23
24700 3/8-24 NF 2B NoGo 2 $129.23
24703 3/8-24 NF 3B Go/NoGo 0 $274.97
24689 5/16-24 NF Go 0 $129.23
24693 5/16-24 NF 3B Go/NoGo 0 $274.97
24706 7/16-14 NC 3B NoGo 1 $132.64
24677 1/4-20 NC 2B Go/NoGo 0 $274.97
24681 1/4-28 NF 3B NoGo 2 $129.23
24695 3/8-16 NC 2B NoGo 1 $129.23
24704 7/16-14 NC Go 0 $132.64
24708 7/16-14 NC 3B Go/NoGo 0 $281.97
24711 7/16-20 NF 3B NoGo 1 $132.64
24713 7/16-20 NF 3B Go/NoGo 0 $281.97
24734 5/8-11 NC Go 0 $181.81
24749 3/4-16 NF Go 0 $192.04
24707 7/16-14 NC 2B Go/NoGo 0 $281.97
24714 1/2-13 NC Go 2 $148.08
24705 7/16-14 NC 2B NoGo 0 $132.64
24720 1/2-20 NF 2B NoGo 1 $148.08
24721 1/2-20 NF 3B NoGo 1 $148.08
24737 5/8-11 NC 2B Go/NoGo 0 $383.73
24723 1/2-20 NF 3B Go/NoGo 0 $315.71
24735 5/8-11 NC 2B NoGo 0 $181.81
24739 5/8-18 NF Go 0 $181.81
24742 5/8-18 NF 2B Go/NoGo 0 $383.73
24709 7/16-20 NF Go 0 $132.64
24741 5/8-18 NF 3B NoGo 0 $181.81
24747 3/4-10 NC 2B Go/NoGo 0 $403.84
24751 3/4-16 NF 3B NoGo 0 $192.04
24710 7/16-20 NF 2B NoGo 1 $132.64
24716 1/2-13 NC 3B NoGo 1 $148.08
24722 1/2-20 NF 2B Go/NoGo 0 $315.71
24743 5/8-18 NF 3B Go/NoGo 0 $383.73
24752 3/4-16 NF 2B Go/NoGo 0 $403.84
24748 3/4-10 NC 3B Go/NoGo 0 $403.84
24712 7/16-20 NF 2B Go/NoGo 0 $281.97
24715 1/2-13 NC 2B NoGo 2 $148.08
24719 1/2-20 NF Go 1 $148.08
24738 5/8-11 NC 3B Go/NoGo 0 $383.73
24750 3/4-16 NF 2B NoGo 0 $192.04
24717 1/2-13 NC 2B Go/NoGo 0 $315.71
24736 5/8-11 NC 3B NoGo 1 $181.81
24744 3/4-10 NC Go 0 $192.04
24753 3/4-16 NF 3B Go/NoGo 0 $403.84
24718 1/2-13 NC 3B Go/NoGo 0 $315.71
24740 5/8-18 NF 2B NoGo 0 $181.81
24745 3/4-10 NC 2B NoGo 0 $192.04
24746 3/4-10 NC 3B NoGo 0 $192.04