ProductPage-Title-Mobile

Below

Scheduled_Orders

show_with_global

ProductPage-Add-To-Quotation

show

SearchPage-LeadTimeFilter

ProductPage-Pills-Visibility

Expanded

InfoPage-DiscountCodes

experiment_1

ProductPage-Attribute-Selector

VariantThreeDropDown

SearchPage_Top_Category

Default

SearchPage-FilterPanel-Expanded

Show

Personalised-BoostType

personalised_boost_v1

Number-Of-Recommendations

eight

SearchPage-SearchResultLimit

Hundred

ProductPage-ViewAll-Terminal-Node

ProductPage_Bundle

two_products

FamilyPage-Attribute-Selector

StickyFilterPanel-InfiniteScroll

Hide

SingleLine-ProductHeader-Mobile

SHOW

Previously-Purchased-Tag

Discount-PromoLabel

hide

Sticky-MainMenu

New_Login_Registration_Toggle

ProductPage-AddToBasket-Mobile

ProductPage-Title-Length-Mobile

Vertical-Recommendations_Toggle

SearchPage-Enable-Sort-Attribute-Value

AttributeValueSortOnSearchAndCategory

Recommendations

test

MyaccountPage_Recommendations

SearchPage-BoostType

boost_img_lt_atb

search-templates

defaultTemplate

Header-MainMenu

Payment-GooglePay

SearchPage-InfiniteScroll-Limit

Thousand

Material

Compatible Diehead Type

Thread Direction

Compatible Diehead Size

Thread Standard

Throat Angle

Lip Type

Thread Size

Finish/Coating

Cutting takes place only on the throat and the first full tooth; the remaining threads are above centre height and act as a nut, ensuring accurate pitch. Ideal for batch work or continuous production of threaded steel bar. Coventry dies are not interchangeable. An original set of new dies must always be used together. When taken from the diehead the set of dies should be retained in its box until required again. 

THROAT ANGLES:
20° for general work and soft steels - supplied as standard. 
33° 'B' type for cutting brass, available on request.

GRINDING DIES:
Only two angles are ground on Coventry dies, the throat angle and the rake angle and in the particular case of Holozone dies only the throat angle is ground. All dies in a set must be ground on the throat at the same time and since they cannot be accurately ground by hand, a die grinding fixture must be used.

MARKING &amp; MATERIALS:
Each die is marked with: diameter, pitch, type of die and gauge number.  Non-standard or special dies are marked with an SD number which should be quoted when re-ordering. When a set of dies has been re-ground several times by grinding the throat angle, the height of the cutting edge rises above centre. This condition must be rectified by grinding the rake angle until the die height is correct according to the number shown on the die.

1/2" UNC Chaser Die 20MMD/HD Type S20

Chaser Dies

Chaser Dies - Free UK Delivery Over £25 - Buy Online | Zoro

Cutting takes place only on the throat and the first full tooth; the remaining threads are above centre height and act as a nut, ensuring accurate pitch. Ideal for batch work or continuous production of threaded steel bar. Coventry dies are not interchangeable. An original set of new dies must always be used together. When taken from the diehead the set of dies should be retained in its box until required again. 

THROAT ANGLES:
20° for general work and soft steels - supplied as standard. 
33° 'B' type for cutting brass, available on request.

GRINDING DIES:
Only two angles are ground on Coventry dies, the throat angle and the rake angle and in the particular case of Holozone dies only the throat angle is ground. All dies in a set must be ground on the throat at the same time and since they cannot be accurately ground by hand, a die grinding fixture must be used.

MARKING & MATERIALS:
Each die is marked with: diameter, pitch, type of die and gauge number.  Non-standard or special dies are marked with an SD number which should be quoted when re-ordering. When a set of dies has been re-ground several times by grinding the throat angle, the height of the cutting edge rises above centre. This condition must be rectified by grinding the rake angle until the die height is correct according to the number shown on the die.

1/2" UNC Chaser Die 20MMD/HD Type S20

Description

We suggest upgrading to Chrome