Hole Gages, Linear ScaleKwik-Chek hole gages are designed for the rapid measurement of small plain hole diameters.These gages work on the principle of directly transferring diameter measurements from a sliding, tapered needle to a linear scale readout graduated in 0.001 or 0.02 mm.Features Rapid and simple calibration-setting master for plain and countersunk holes provided with each gage. Permits rapid periodic check on calibration and field readjustment, if necessary, by shop personnel. Magnified, direct reading scale -permits easy reading of hole diameters to nearest 0.001 or 0.02mm. Hardened and plated needle -precision ground tapered needle is made of hardened 52-100 steel and chrome plated for maximum wear resistance. Positive clutch -locks needle and scale at exact dimension of hole being measured. Completely portable -convenient pocket size and weight make these gages ideal for roving inspectors and mechanics.KWIK-CHEK Hole gageCatalog NumberHole Size RangeShipping WeightKW10.010-.028 1 lbKW20A.025-.130 1 lbKW 30A.130-.255 1 lbKW 40A.255- .380 KW10M.25-.70 mm.5 kgKW20AM.60-3.30 mm.5 kgKW30AM3.30-6.50 mm.5 kgKW40M6.50-9.50 mm孔規(guī)（線性刻度） 美國品牌Kwik-Chek孔規(guī)是設計用來對小圓孔進行快速測試的工具。這種儀器是利用直徑轉換測試的原理，通過光滑錐形的針插入孔的深度轉換成最小刻度為0.001 或者0.02mm的讀數(shù)進行測試的。特點 快速簡便的校準 -每一款孔規(guī)為使用者提供普通孔和盲孔進行校準設置。允許對校準進行周期性檢查或者野外調節(jié)；如果有必要，可以交給儀器代理商進行校準。 加大的，直讀刻度 -孔徑容易識讀，以最接近0.001 或者0.02mm刻度的讀數(shù)為準。 經過電鍍的堅固的針頭 -高精度的錐形探針內芯材料是52-100鋼，外層鍍鉻，所以更加耐用。 強制離合器 -將針和刻度鎖死在恰當?shù)倪m合孔徑測量的位置。 小型方便攜帶 -便于攜帶的尺寸和重量使得這款孔規(guī)可以用于移動檢查。 Hole_Gauge.pdf也被稱作孔徑測量儀，孔徑尺寸測量儀，孔徑規(guī)，測孔儀，孔直徑測量儀等；美國KWIK-CHEK生產，可以測量025-9.5mm（0.010-0.38英寸）之間的孔徑大小，最小刻度0.02mm(0.001英寸）